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Hecla Reports Continued Discoveries at the Mines, Integrates Nevada, and Advances Key Projects

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Hecla Mining Company ((HL)
today provided an update on its exploration programs during the second
quarter.

Exploration Highlights

  • Casa Berardi:
    • Drilling is expanding potential size of the East Mine Crown Pillar
      (EMCP) pit and the proposed 160, Principal and West Mine Crown
      Pillar (WMCP) open pits.
    • Underground drilling of the 118 and 123 zones continues to
      discover high-grade mineralization along trends. Surface drilling
      has defined high-grade extensions of the 124, 134 and south
      perimeter of the Principal Crown Pillar (123 Zone).
    • At Lac Germain, 4.5 miles east of Casa Berardi, drilling resulted
      in intersections of high-grade, gold-bearing mineralized zones in
      at least five subparallel lenses. Most of the gold-bearing lenses
      go to surface and the combination of mineralized lenses extend
      approximately 2,200 feet along strike and to a depth of 1,300 feet.
  • San Sebastian: Continues to refine and expand high-grade, polymetallic
    zones on the Middle and Francine veins. Additional oxide
    mineralization being defined along the Professor and East Francine
    veins.
  • Greens Creek: Exploration drilling continues to expand the Deep 200
    South, Gallagher, East Ore, Upper Plate and Southwest Bench zone
    mineralized trends.
  • Nevada: Integration of the Klondex exploration group is underway and
    drill programs are ramping up.

"The exploration success we have seen across the portfolio in recent
quarters continues," said Phillips S. Baker, Jr., President and CEO.
"The teams at Casa Berardi, Greens Creek and San Sebastian are
discovering high-grade material, both at surface and at depth. A new
focus is our 110-square-mile land package in Nevada where we are
integrating the existing exploration team and ramping-up drilling."

Casa Berardi – Quebec

During the second quarter, up to six underground drills were used to
refine stope designs, expand reserves and resources in the 118, 121, 123
and 124 zones and confirm further potential at depth and to the east and
west. Up to five drills on surface completed infill and exploration
drilling at the EMCP, WMCP, Principal, 134 and 160 zones. It is
anticipated that once the resource is updated and pit optimization
studies are completed, these results will extend the current EMCP pit to
the west, potentially expand the proposed Principal Pit, and provide the
basis for a new pit design of the WMCP. Deeper drilling has also
identified high-grade zones that extend from the proposed 134, 160 and
Principal pits into the underground where follow-up drilling has refined
the geometry of these higher-grade resources.

At the Lower 118 Zone, drilling confirmed the continuity of
multiple mineralized lenses to the west and at depth outside the current
resource boundary. Recent intersections include 0.55 oz/ton gold over
3.3 feet and 1.49 oz/ton gold over 1.6 feet and drilling continues to
expand this mineralized trend. Drilling of stacked, high-grade lenses of
the 123 Zone is defining the connection of multiple mineralized
lenses for over 1,900 feet of strike length and over 3,600 feet down-dip
below the 1070 level. Near the top of the 123 Zone resource, step-out
drilling to the east has intersected 0.70 oz/ton gold over 15.3 feet and
0.50 oz/ton gold over 4.9 feet. Drilling from lower in the mine has
defined a new mineralized area north of the Casa Berardi Fault. This new
125 Zone is a broad mineralized area that includes higher-grade
intervals such as 0.20 oz/ton gold over 9.8 feet. Drilling below the
current 123 Zone resource intersected 0.22 oz/ton gold over 21.2 feet
and drilling further below the bottom of the mine returned 0.45 oz/ton
gold over 12.0 feet and 0.44 oz/ton gold over 9.1 feet suggesting these
mineralized lenses plunge west at depth and mineralization remains open.
High in the mine, drilling has targeted the east extension of the 124
Zone
that is down-plunge of the Principal pit mineralization.
Exploration drilling is planned from underground to define this trend.

Surface and shallow underground drilling have identified extensions of
potential pits that are being evaluated for production. Drilling on the
west extension of the current EMCP Pit has returned 0.11
oz/ton gold over 40.3 feet, defining an extension of over 800 feet to
the west of the current pit outline. Shallow drilling is completed.
Updated block modeling and a final pit design shows the pit extending to
the west and slightly to the east. Surface exploration drilling will
follow up on the high-grade mineralization that was defined along the
146 and 148 zones and will be evaluated for the underground potential.

Surface drilling of the 134 and 160 zones below the limits
of the proposed pits intersected high-grade veins that show continuity
down-plunge to the east. Recent deeper drill intersections of the 160
Zone include 0.16 oz/ton gold over 57.4 feet and 0.16 oz/ton gold over
41.7 feet and the high-grade shoots within these intervals may have the
potential for underground mining. Significantly, the re-establishment of
the underground drill platforms in the East Mine below the 160 Zone
could allow for the evaluation of these high-grade shoots later this
year and possibly revive mining in this area.

Drilling of the WMCP to the west of the West Shaft continues to
intercept strong mineralized structures near surface and shows the
continuity of mineralization within 800 feet of surface. This
drilling is designed to evaluate the open pit potential west of the West
Shaft, and a significant number of assays are pending. The WMCP resource
modeling is in progress and drilling results should be included in the
end of year 2018 reserves. Drilling to the south of the proposed crown
pillar in the Principal Pit area confirmed continuity and
includes intersections of 0.04 oz/ton gold over 84.0 feet and 0.11
oz/ton gold over 8.9 feet.

For the remainder of 2018, surface drilling programs are planned at the
123-124 zones (Principal area), 146 Zone/EMCP, and WMCP to define and
expand these potential open pits along the Casa Berardi Fault.
Underground drilling is expected to continue to expand and refine the
118 and 123 zones lower in the mine and the 123, 124, 134 and 160 zones
closer to surface. Drilling of the 160 Zone from underground is planned
to start in the third quarter with the goal of increasing reserves and
resources in the newly-accessible East Mine.

Surface drilling at the Lac Germain prospect, 4.5 miles to the
northeast of the Casa Berardi mining lease and along a splay of the Casa
Berardi Deformation Zone, succeeded in defining five gold-bearing
mineralized lenses that extend approximately 2,200 feet along strike and
to a depth of 1,300 feet from surface. In the LG-1 lens, a drill hole
returned 0.32 oz/ton gold over 10.4 feet including 0.67 oz/ton gold over
3.5 feet. Along the LG-2 lens near-surface, drilling intersected an
exceptional value of 14.8 oz/ton gold over 1.7 feet and a separate
intersection of 0.20 oz/ton gold over 11.4 feet. At the LG-3 lens,
drilling returned 0.18 oz/ton gold over 9.6 feet and 0.13 oz/ton gold
over 7.5 feet. Finally, in Zone LG-4, intersections of 0.17 oz/ton gold
over 19.7 feet, 0.12 oz/ton gold over 24.7 feet and 0.19 oz/ton gold
over 12.9 feet were reported.

In combination, the lenses are interpreted to form a 300-foot wide
structural and alteration corridor in a sequence of sedimentary rocks
including banded iron formation. Gold-bearing mineralization is related
to quartz and quartz-carbonate veins up to 5 feet thick and is present
close to surface and has steep-to-sub-vertical plunges that are similar
to the plunges of gold mineralization at the Casa Berardi Mine. A number
of these lenses are open along strike and at depth and are expected to
be the focus of exploration in 2019. Surface drilling to the west of the
Casa Berardi Mining Lease has also extended mineralization along the
Casa Berardi Deformation Zone where one recently defined lens has a
similar style of mineralization to the 123 Zone at Casa Berardi. The
prospective Casa Berardi Deformation Zone and related structural splays
have a strike length of over 20 miles on the property and should be the
focus of exploration for many years.

More complete drill assay highlights from Casa Berardi can be found in
Table A at the end of the release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q2-2018-ExplorationUpdate.pdf.

San Sebastian – Mexico

During the quarter, four core drill rigs and one reverse circulation
(RC) drill operated, with two drills concentrated on infill drilling of
the polymetallic zone along the Francine Vein. The other drills
were active in exploration core drilling which was directed toward the
expansion of high-grade polymetallic mineralization along the Middle
Vein and shallower exploration drilling of oxide mineralization along
the Professor and East Francine veins.

On the Francine Vein, infill holes within the polymetallic zone
intercepted intervals of semi-massive sulfide that are generally
consistent with the previous exploration drilling results. Recent assays
include 0.11 oz/ton gold, 13.2 oz/ton silver, 2.2% copper, 2.9% lead,
and 4.6% zinc over 5.6 feet, and 0.01 g/ton gold, 10.2 oz/ton silver,
2.1% copper, 2.6% lead, and 2.7% zinc over 10.0 feet. This drilling is
continuing to the east and at depth and is intended to refine the
resources prior to developing a mine plan. A bulk sample of the
polymetallic Francine Vein should occur in the fourth quarter and
provide material for metallurgical studies and a viability test of the
nearby Excellon Mill where the processing of sulfide ores from San
Sebastian is planned.

Further to the east, beyond the San Ricardo Fault, new zones of
vein-hosted, oxide mineralization have been defined by drilling along
the East Francine Vein. Drilling continues to intersect narrow,
but high-grade mineralization including intersections of 0.05 oz/ton
gold and 18.8 oz/ton silver over 6.1 feet and 0.07 oz/ton gold and
21.2 oz/ton silver over 4.2 feet. The mineralized area is currently
defined over 1,200 feet along strike and 800 feet down-dip and drilling
is now concentrated on the 1,000 feet of open area located between these
new intercepts and the previously defined mineralization in the
shallower portion of the East Francine Vein resource area. When
incorporating the newly-defined mineralization in East Francine, the
total strike length of continuous mineralization along the Francine Vein
exceeds 8,000 feet and can be traced to a depth of over 2,000 feet.

Recent RC drilling intersected 0.02 oz/ton gold and 23.7 oz/ton silver
over 6.6 feet of oxidized quartz vein about 100 feet from surface. This
intercept is interpreted to be the projection of West Francine Vein
in an area located about 1,000 feet west of any past drilling on the
Francine Vein. Follow-up core drilling of this target is planned in the
third quarter. The Professor Vein is located approximately 300
feet south of the Francine Vein and some high-grade mineralization is
located near a programmed Francine Vein crosscut and could be accessed
by extending the current ramp from surface. Recent drilling of this vein
includes intersections of 1.03 oz/ton gold and 31.0 oz/ton silver over
6.3 feet and 0.19 oz/ton gold and 47.6 oz/ton silver over 4.9 feet.
There appear to be three main pods of high-grade mineralization along
the Professor Vein; one that extends vertically to surface and two pods
that are located about 250 feet from surface.

Exploration drilling of the West Middle Vein was directed
toward a new zone of high-grade mineralization with similar mineral
characteristics as the previously discovered polymetallic mineralization
on the Francine Vein. This zone extends 1,600 feet along strike and
1,400 feet down-dip and is open to the east and at depth. The upper
extent of this mineralization is located about 100 to 300 feet below the
new Middle Vein underground mine ramp and work on a development drift
has begun to facilitate the collection of a bulk sample of the
polymetallic mineralization later this year. Recent intersections
include 47.6 oz/ton silver, 0.19 oz/ton gold, 0.1% copper, 0.3% lead,
and 0.5% zinc over 4.9 feet and 29.7 oz/ton silver, 0.07 oz/ton gold,
0.1% copper, 0.3% lead, and 0.3% zinc over 2.3 feet. Drilling of this
mineralization along the Middle Vein is expected to continue to depth
and to the east.

Drilling continues to expand resources and evaluate polymetallic targets
along the Middle and Francine veins and will also evaluate near-surface,
oxide mineralization at the East and West Francine, Professor and
Esperanza veins.

More complete drill assay highlights from San Sebastian can be found in
Table A at the end of this release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q2-2018-ExplorationUpdate.pdf.

Greens Creek – Alaska

At Greens Creek, drilling in the second quarter and strong assay results
received from previous drilling in the first quarter have upgraded and
expanded the Deep 200 South, Gallagher, East Ore, Upper Plate and
Southwest Bench zone resources.

Drilling of the southern portion of the Deep 200 South Zone,
include intersections of 101.4 oz/ton silver, 0.09 oz/ton gold, 4.2%
zinc and 2.1% lead over 8.0 feet. Confirmed bench mineralization is
present as two flat-lying, high-grade lenses and upgraded it to an
indicated resource. Exploration drilling south of the current resource
has extended 200 South Bench mineralization another 250 feet with an
intersection of 31.8 oz/ton silver, 0.01 oz/ton gold, 2.2% zinc and 1.0%
lead over 23.6 feet. Deeper drilling has defined a third, lower
mineralized horizon along the mine contact that has been folded to depth
relative to the bench mineralization. Recent exploration drilling to the
south also identified thin bench mineralization outside the modeled ore
zone to the west. Recent intersections in this area include 22.8 oz/ton
silver, 0.38 oz/ton gold, 2.7% zinc and 1.3% lead over 3.0 feet.
Shallow, east-dipping mineralization more than 250 feet west of the
modeled ore zone includes 39.9 oz/ton silver, 0.02 oz/ton gold, 1.3%
zinc and 0.7% lead over 9.2 feet. Current exploration drilling further
south suggests the bench mineralization remains robust.

Drilling of the Gallagher Zone confirmed modeled thicknesses and
may have increased the resource and mineralization further to the west.
Intersections from this program include 10.6 oz/ton silver, 0.04 oz/ton
gold, 2.0% zinc and 1.0% lead over 23.9 feet. Exploration drilling also
intersected ore lithologies along and west of the Gallagher Fault.
Future drilling is planned to see if the current precious metal-rich
mineralization transitions into broader and higher-grade precious and
base metal-rich mineralization.

Drilling of the Upper Plate Zone suggests that there are two,
flat-lying ore zones near the mine portal elevation. Drill results show
the lower band of mineralization is similar in thickness to the resource
model, although it occurs beyond the current wireframe to the west and
south. South of the current lower band, step-out drilling has
intersected 42.9 oz/ton silver, 0.04 oz/ton gold, 3.1% zinc and 1.5%
lead over 24.1 feet. The upper band is thicker than the resource model,
including 21.0 oz/ton silver, 0.02 oz/ton gold, 9.7% zinc and 5.8% lead
over 20.8 feet, and recent drilling has also extended this
mineralization to the west and south. Drilling from surface in the third
quarter could expand this resource further to the west and north.

Drilling of the Lower Southwest Zone indicates that the
newly-defined lower ore band extends farther to the north and higher in
elevation than modeled. Thick intercepts of white ores and massive
sulfide lithologies continue to be found beyond the northern extent of
the current resource. Recent drilling of the upper remnant limb of the
lower Southwest Zone shows the mineralization in this section is much
thicker than anticipated. In the East Ore Zone intersections from
definition drilling, including 18.8 oz/ton silver, 0.24 oz/ton gold,
12.4% zinc and 4.7% lead over 24.1 feet, confirm previously modeled
resource estimates, particularly at higher elevations. The focus of
underground drilling is planned to be on the Deep 200 South, Gallagher,
East Ore and Southwest Bench zones throughout 2018 with additional
drilling targeting the Northwest West and 9A zones.

Surface drilling commenced in June and the first three drill holes have
intersected broad zones of stockwork veining and 3 to 5-foot wide bands
of semi-massive sulfide containing significant sphalerite, galena and
silver sulfosalts. This semi-massive sulfide zone is about 800 feet west
of the current 200 South Bench resource and may represent part of
a bench syncline that extends appreciably along strike to the north and
south.

More complete drill assay highlights from Greens Creek can be found in
Table A at the end of this release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q2-2018-ExplorationUpdate.pdf.

Nevada

Fire Creek

Definition drilling at the Fire Creek Mine performed by Klondex Mines
was focused on upgrading and expanding resources in the central Spiral
2
area and filling the gap to the Spiral 4 area in the
southern part of the mine. Recent intersections in Spiral 2 include 1.08
oz/ton gold over 4.1 feet and 0.65 oz/ton gold over 3.0 feet and show
the upside potential of resources in close proximity to mine workings.
Drilling has also extended Spiral 2 mineralization up-dip and to the
north in the Joyce Splay with intersections including 1.73 oz/ton gold
over 1.8 feet. Intersections including 0.46 oz/ton gold over 6.8 feet
along the Karen Vein indicate the structure continues south toward
Spiral 4. Additional drilling has in-filled and extended mineralization
along strike and up-dip in the Spiral 4 area. Underground development is
advancing on the Haulage 9 drift to provide an exploration drill
platform that is expected near year-end with the goal of extending
Spiral 9 veins to the south.

There are two surface exploration rigs operating at the Fire Creek Mine
to find extensions of current high-grade, gold-bearing structures.
Drilling at the Guard Shack, which is southeast of the mine
infrastructure, encountered structures with strong clay alteration,
which typically are gold-bearing, and suggest the mineralization carries
further south. Additional targets within the Guard Shack area that will
be evaluated with drilling include a resistivity high to the west
corresponding to a link structure between Joyce and the Titan zones.
Further south along known structural corridors in the South Notice
area, an Induced Polarization (IP)/resistivity geophysical survey is in
progress to refine drilling targets for later in the year. The first
surface hole at the Zeus target, which is northwest of the mine
infrastructure, encountered a structure with strong alteration and
mineralization at the projected target depth. This is the first of a
projected eight holes that are designed to build upon strong drill
results from last year to the north and south along strike.

Hollister

Two drill rigs concentrated on definition drilling in the Central
Hollister
to refine resources next to and above the mine
infrastructure and evaluate the Gwenevere Vein and Upper Gloria
areas that are the eastern and western extents of the mine,
respectively. The Gwenevere program targeted the 58, 59 and 60
veins and intersections include 1.58 oz/ton gold and 13.5 oz/ton silver
over 0.8 feet, 0.47 oz/ton gold and 0.60 oz/ton silver over 10.4 feet
and 3.01 oz/ton gold and 13.6 oz/to silver over 0.4 feet and show the
veins have good continuity and remain open to the east. The Upper
Gloria
intersections include 1.05 oz/ton gold and 67.2 oz/ton silver
over 1.0 feet, 1.60 oz/ton gold and 11.2 oz/ton silver over 0.9 feet and
0.52 oz/ton gold and 10.8 oz/ton silver over 1.23 feet and indicates
these high-grade veins are open further to the west and in the higher
mining elevations. The Central Hollister program was designed to
follow up on historical reverse circulation (RC) intercepts of the 213
Vein and to extend mineralization on the 151, 161 and 181 veins.
Intersections include 1.65 oz/ton gold over 0.3 feet and 0.51 oz/ton
gold over 2.2 feet and indicates significant mineralization exists above
the central mine area.

Surface drilling of the Rowena target is designed to offset
historic, high-grade intersections and extend the resource east and west
in the northern part of the mine. Two drills on the Hatter Graben
will start operating in August to test the current Hatter resource east
and west.

Midas

Exploration drilling is concentrated on the Trinity target, which
is a small, high-grade deposit south of the 3 Haulage Extension at the
south end of the Midas Mine. Although assays are pending, surface
drilling to the north and south suggests vein mineralization may be
strongest along the edges of the Trinity Corridor and mafic dikes and
appears to be open to both the south and north.

More complete drill assay highlights from Nevada (Fire Creek, Hollister
and Midas) can be found in Table A at the end of this release and a
presentation showing drill intersection locations is available at the
following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q2-2018-ExplorationUpdate.pdf.

Other

Drilling in the quarter advanced the exploration of the Kinskuch
silver-base metals project in northern British Columbia, the Little
Baldy gold project in northern Idaho, and the Republic gold project in
Washington.

Updated Reserves and Resources (Incorporating Three Nevada Mines)

A breakdown of the Company's reserves and resources incorporating the
new reserves and resources from acquisition of the Klondex Mines assets
(Fire Creek, Hollister and Midas mines) is set out in Tables B and C at
the end of this news release. The new table is a combination of Hecla
Reserve and Resources (reported in Hecla Mining Company press release
February 7, 2018) and the reserves and resources of the Fire Creek,
Hollister and Midas mines. The Fire Creek reserves and resources are
those reported by Klondex Mines on February 5, 2018 with mining
depletion to April 1, 2018. Reserves and Resources for Hollister are
those reported by Klondex on July 13, 2017 with mining depletion to
April 1, 2018. The Midas Reserves and Resources have an effective date
of June 30, 2017 and are also depleted to April 1, 2018.

ABOUT HECLA

Founded in 1891, Hecla Mining Company ((HL)
is a leading low-cost U.S. silver producer with operating mines in
Alaska, Idaho and Mexico, and is a growing gold producer with operating
mines in Quebec and Nevada. The Company also has exploration and
pre-development properties in eight world-class silver and gold mining
districts in the U.S., Canada, and Mexico.

Cautionary Statements Regarding Forward Looking Statements

Statements made or information provided in this news release that are
not historical facts are "forward-looking statements" within the meaning
of the Private Securities Litigation Reform Act of 1995 and
"forward-looking information" within the meaning of Canadian securities
laws. Words such as "may", "will", "should", "expects", "intends",
"projects", "believes", "estimates", "targets", "anticipates" and
similar expressions are used to identify these forward-looking
statements. The material factors or assumptions used to develop such
forward-looking statements or forward-looking information include that
the Company's plans for development and production will proceed as
expected and will not require revision as a result of risks or
uncertainties, whether known, unknown or unanticipated, to which the
Company's operations are subject.

Forward-looking statements involve a number of risks and uncertainties
that could cause actual results to differ materially from those
projected, anticipated, expected or implied. These risks and
uncertainties include, but are not limited to, metals price volatility,
volatility of metals production and costs, litigation, regulatory and
environmental risks, operating risks, project development risks,
political risks, labor issues, ability to raise financing and
exploration risks and results. Refer to the Company's Form 10K and 10-Q
reports for a more detailed discussion of risk factors that may impact
expected future results. The Company undertakes no obligation and has no
intention of updating forward-looking statements other than as may be
required by law.

Qualified Person (QP) Pursuant to Canadian
National Instrument 43-101

Dean McDonald, PhD. P.Geo., Senior Vice President - Exploration of Hecla
Mining Company, who serves as a Qualified Person under National
Instrument 43-101, supervised the preparation of the scientific and
technical information concerning Hecla's mineral projects in this news
release, including with respect to the newly acquired Nevada projects.
Information regarding data verification, surveys and investigations,
quality assurance program and quality control measures and a summary of
sample, analytical or testing procedures for the Greens Creek Mine are
contained in a technical report prepared for Hecla titled "Technical
Report for the Greens Creek Mine, Juneau, Alaska, USA" effective date
March 28, 2013, and for the Lucky Friday Mine are contained in a
technical report prepared for Hecla titled "Technical Report on the
Lucky Friday Mine Shoshone County, Idaho, USA" effective date April 2,
2014, for the Casa Berardi Mine are contained in a technical report
prepared for Hecla titled "Technical Report on the Mineral Resource and
Mineral Reserve Estimate for the Casa Berardi Mine, Northwestern Quebec,
Canada" effective date March 31, 2014 (the "Casa Berardi Technical
Report"), and for the San Sebastian Mine are contained in a technical
report prepared for Hecla titled "Technical Report for the San Sebastian
Ag-Au Property, Durango, Mexico" effective date September 8, 2015. Also
included in these four technical reports is a description of the key
assumptions, parameters and methods used to estimate mineral reserves
and resources and a general discussion of the extent to which the
estimates may be affected by any known environmental, permitting, legal,
title, taxation, socio-political, marketing or other relevant factors.
Information regarding data verification, surveys and investigations,
quality assurance program and quality control measures and a summary of
sample, analytical or testing procedures for the Fire Creek Mine are
contained in a technical report prepared for Klondex Mines, dated
November 30, 2017, amended March 2, 2018; the Hollister Mine dated May
31, 2017, amended August 9, 2017; and the Midas Mine dated August 31,
2014, amended April 2, 2015. Copies of these technical reports are
available under Hecla's and Klondex's profiles on SEDAR at www.sedar.com.

Dr. McDonald reviewed and verified information regarding drill sampling,
data verification of all digitally-collected data, drill surveys and
specific gravity determinations relating to the Casa Berardi mine. The
review encompassed quality assurance programs and quality control
measures including analytical or testing practice, chain-of-custody
procedures, sample storage procedures and included independent sample
collection and analysis. This review found the information and
procedures meet industry standards and are adequate for Mineral Resource
and Mineral Reserve estimation and mine planning purposes.

Cautionary Statements to Investors on Reserves and Resources

Reporting requirements in the United States for disclosure of mineral
properties are governed by the SEC and included in the SEC's Securities
Act Industry Guide 7, entitled "Description of Property by Issuers
Engaged or to be Engaged in Significant Mining Operations" (Guide 7).
However, the Company is also a "reporting issuer" under Canadian
securities laws, which require estimates of mineral resources and
reserves to be prepared in accordance with Canadian National Instrument
43-101 (NI 43-101). NI 43-101 requires all disclosure of estimates of
potential mineral resources and reserves to be disclosed in accordance
with its requirements. Such Canadian information is being included here
to satisfy the Company's "public disclosure" obligations under
Regulation FD of the SEC and to provide U.S. holders with ready access
to information publicly available in Canada.

Reporting requirements in the United States for disclosure of mineral
properties under Guide 7 and the requirements in Canada under NI 43-101
standards are substantially different. This document contains a summary
of certain estimates of the Company, not only of proven and probable
reserves within the meaning of Guide 7, but also of mineral resource and
mineral reserve estimates estimated in accordance with the definitional
standards of the Canadian Institute of Mining, Metallurgy and Petroleum
referred to in NI 43-101. Under Guide 7, the term "reserve" means that
part of a mineral deposit that can be economically and legally extracted
or produced at the time of the reserve determination. The term
"economically," as used in the definition of reserve, means that
profitable extraction or production has been established or analytically
demonstrated to be viable and justifiable under reasonable investment
and market assumptions. The term "legally," as used in the definition of
reserve, does not imply that all permits needed for mining and
processing have been obtained or that other legal issues have been
completely resolved. However, for a reserve to exist, Hecla must have a
justifiable expectation, based on applicable laws and regulations, that
issuance of permits or resolution of legal issues necessary for mining
and processing at a particular deposit will be accomplished in the
ordinary course and in a timeframe consistent with Hecla's current mine
plans. The terms "measured resources", "indicated resources," and
"inferred resources" are Canadian mining terms as defined in accordance
with NI 43-101. These terms are not defined under Guide 7 and are not
normally permitted to be used in reports and registration statements
filed with the SEC in the United States, except where required to be
disclosed by foreign law. The term "resource" does not equate to the
term "reserve". Under Guide 7, the material described herein as
"indicated resources" and "measured resources" would be characterized as
"mineralized material" and is permitted to be disclosed in tonnage and
grade only, not ounces. The category of "inferred resources" is not
recognized by Guide 7. Investors are cautioned not to assume that any
part or all of the mineral deposits in such categories will ever be
converted into proven or probable reserves. "Resources" have a great
amount of uncertainty as to their existence, and great uncertainty as to
their economic and legal feasibility. It cannot be assumed that all or
any part of such a "resource" will ever be upgraded to a higher category
or will ever be economically extracted. Investors are cautioned not to
assume that all or any part of a "resource" exists or is economically or
legally mineable. Investors are also especially cautioned that the mere
fact that such resources may be referred to in ounces of silver and/or
gold, rather than in tons of mineralization and grades of silver and/or
gold estimated per ton, is not an indication that such material will
ever result in mined ore which is processed into commercial silver or
gold.

 
Table A – Assay Results – Q2 2018
Casa Berardi (Quebec)
Zone   Drill Hole Number   Drill Hole Section   Drill Hole Azm/Dip   Sample From   Sample To   True Width (feet)   Gold (oz/ton)   Depth From Mine Surface (feet)
Lower 118 - 990-1050 Area   CBP-0686   12117   360/-20   168.0   172.5   13.4   0.12   3416
118   CBP-0686   12120   360/-20   178.5   189.2   32.3   0.14   3433
118   CBP-0687   12087   360/-33   15.0   15.5   1.6   1.49   3252
118   CBP-0689   12085   360/-20   169.8   175.7   19.0   0.14   3409
118   CBP-0693   12058   360/-20   179.5   189.0   29.9   0.14   3421
118   CBP-0695   12120   360/-44   4.0   5.0   3.3   0.55   3237
Upper 123 - 390-430 Area   CBP-0430-003   12487   139/43   21.0   22.9   4.9   0.50   1347
123   CBP-0430-003   12490   139/43   26.7   28.7   4.1   0.20   1334
123   CBP-0430-004   12498   125/32   25.4   34.5   19.2   0.28   1345
123   CBP-0430-005   12517   116/1   38.8   51.8   21.4   0.17   1392
123   CBP-0430-006   12405   353/11   63.9   72.1   25.5   0.15   1357
123   CBP-0430-006   12405   353/11   186.0   194.0   26.1   0.11   1280
123   CBP-0430-006   12405   353/11   199.0   201.5   8.2   0.13   1275
123   CBP-0430-006   12405   353/11   205.9   208.0   7.1   0.18   1271
123   CBP-0430-008   12406   353/-9   58.8   62.7   10.8   0.20   1140
Upper 123 - 450-510 Area   CBP-0530-391   12364   240/22   82.7   90.0   15.3   0.70   1628
123 (125 Zone) - 810-930 Area   CBP-0910-104   12226   173/-26   24.0   32.0   26.2   0.16   2995
123   CBP-0910-104   12230   173/-26   70.0   74.4   9.8   0.20   3053
123   CBP-0910-105   12228   172/-38   33.0   41.0   21.2   0.22   3031
123   CBP-0910-109   12147   243/43   102.6   106.0   7.2   0.44   2720
Lower 123 - 910-950 Area   CBP-0950-086   12406   180/76   9.7   15.0   10.1   0.15   3066
123   CBP-0950-098   12414   153/-5   12.0   16.4   12.1   0.13   3118
123   CBP-0950-101   12256   180/57   67.0   71.1   13.4   0.18   2925
123   CBP-0950-102   12256   179/38   51.1   61.0   31.3   0.13   3122
123   CBP-0950-104   12254   180/-15   34.0   39.4   11.2   0.13   3148
123   CBP-0950-106   12255  

280/56

  3.0   14.6   35.5   0.14   3118
123   CBP-0950-107   12241   187/46   55.6   61.8   19.0   0.30   2977
123   CBP-0950-117   12257   360/44   25.0   27.7   4.5   0.21   3051
Lower 123 - 990-1050 Area   CBP-0990-060   12182   23/-12   54.7   66.0   33.5   0.13   3278
123   CBP-0990-064   12279   179/-5   73.1   109.0   106.6   0.31   3243
123   CBP-0990-065   12282   179/-13   77.5   111.5   94.0   0.24   3289
123   CBP-0990-066   12281   179/-19   91.7   103.0   31.6   0.26   3319
123   CBP-0990-067   12282   179/-30   68.0   75.0   14.4   0.28   3345
123   CBP-0990-068   12282   179/-36   64.0   81.0   44.0   0.15   3364
123   CBP-0990-068   12280   179/-36   113.0   117.0   9.1   0.44   3438
123   CBP-0990-068   12278   179/-36   126.0   144.0   41.3   0.18   3470
123   CBP-0990-069   12294   170/7   78.0   104.0   82.9   0.22   3181
123   CBP-0990-070   12293   170/-7   69.4   78.0   24.5   0.17   3249
123   CBP-0990-070   12296   170/-7   87.0   107.6   62.8   0.24   3251
123   CBP-0990-071   12293   170/-15   94.0   108.0   42.6   0.18   3316
123   CBP-0990-072   12292   170/-22   99.0   118.0   51.5   0.20   3344
123   CBP-0990-073   12293   170/-29   110.0   134.0   64.7   0.26   3403
123   CBP-0990-076   12272   188/-28   88.0   95.0   12.0   0.45   3368
123   CBP-0990-076   12267   188/-28   119.0   125.0   16.2   0.32   3412
123   CBP-0990-077   12272   188/-34   75.0   101.0   40.2   0.19   3388
123   CBP-0990-078   12269   188/-40   86.6   118.0   21.2   0.22   3426
Surface - EMCP Pit   CBF-148-062   14624   41/-45   112.9   152.0   97.1   0.04   320
148   CBF-148-062   14643   41/-45   164.0   196.0   77.1   0.04   429
148   CBF-148-065   14596   22/-45   119.0   137.4   49.3   0.05   304
148   CBF-148-066   14586   22/-53   96.6   111.0   40.3   0.11   277
148   CBF-148-068   14536   4/-65   74.8   88.5   26.4   0.18   249
148   CBF-148-068   14536   4/-65   96.4   110.0   36.5   0.10   311
148   CBF-148-069   14535   4/-75   103.0   116.0   26.2   0.07   353
Surface - 160 Zone   CBF-160-075   15909   4/-47   255.0   273.0   57.4   0.16   635
160   CBF-160-076   15902   4/-58   60.0   68.7   23.6   0.17   194
160   CBF-160-077   15790   360/-50   425.0   435.0   31.2   0.16   11
160   CBF-160-078   15772   355/-58   423.0   431.0   24.7   0.15   967
160   CBF-160-078   15775   355/-58   471.0   484.5   41.7   0.16   1104
125 Zone   CBP-0666   12537   355/-40   295.0   303.0   22.0   0.05   3073
125 Zone   CBP-0666   12536   355/-40   316.0   320.0   9.8   0.20   3108
Surface - 149 Zone   CBS-18-840   14117   4/-75   1393.5   1399.5   17.4   0.08   3128
146 Zone   CBS-18-863   14424   18/-55   450.0   454.5   11.8   0.02   1113
Surface - West Pillar   CBF-105-001   10973   147/-59   182.3   191.1   17.7   0.07   512
West Pillar   CBS-18-851   10384   186/-59   264.0   270.0   12.1   0.03   748
West Pillar   CBS-18-851   10385   186/-59   324.0   328.5   9.8   0.08   898
West Pillar   CBS-18-865   10995   135/-45   128.0   134.9   10.2   0.02   293
Surface - Principal Area   CBS-17-825   13508   360/-64   376.0   377.0   2.6   0.68   898
134   CBS-17-825   13507   360/-64   406.5   415.3   23.6   0.13   962
134   CBS-17-828   13424   327/-55   343.0   374.3   84.0   0.04   789
134   CBS-17-829   13433   343/-60   445.0   448.0   8.9   0.11   939
134   CBS-18-855   13232   360/-70   360.4   364.2   8.9   0.08   999
134   CBS-18-856   13230   360/-72   473.6   477.8   9.2   0.15   1379
134   CBS-18-866   13205   360/-65   411.2   412.2   12.2   0.16   1118
               

Lac Germain (Quebec)

Zone   Drill Hole Number   Drill Hole Section   Drill Hole Azm/Dip   Sample From   Sample To   Width (feet)   True Width (feet)   Gold (oz/ton)   Depth From Mine Surface (feet)
LG_1   CBS-18-945   23175   359/-57   116.5   122.0   5.5   4.4   0.14   105
LG_1   CBS-18-946   23250   358/-56   150.6   154.9   4.3   3.5   0.23   132
LG_1   CBS-18-955   22840   356/-46   623.4   635.2   11.8   10.4   0.32   466
LG_1   Including   627.3   631.2   3.9   3.5   0.67   467
LG_1   CBS-18-965   22940   358/-54   535.1   551.5   16.4   14.2   0.16   431
LG_2   CBS-18-940   23050   357/-58   962.9   976.0   13.1   11.4   0.20   794
LG_2   CBS-18-942   23075   359/-56   196.9   221.5   24.6   20.7   0.15   175
LG_2   CBS-18-942   23075   359/-56   243.1   247.7   4.6   3.9   6.38   204
LG_2   Including   245.7   247.7   2.0   1.7   14.82   204
LG_2   CBS-18-943   23100   359/-56   144.4   149.6   5.2   4.3   0.14   126
LG_2   CBS-18-956   22700   355/-54   511.8   515.1   3.3   4.9   0.12   408
LG_2   CBS-18-957   22770   356/-54   600.4   603.7   3.3   5.0   0.14   481
LG_2   CBS-18-964   22850   359/-55   443.6   446.2   2.6   2.3   0.17   352
LG_3   CBS-18-935   22775   357/-57   1099.4   1110.2   10.8   9.6   0.18   889
LG_3   CBS-18-947   23200   358/-57   625.0   633.5   8.5   7.5   0.13   517
LG_3   CBS-18-954   23125   350/-56   860.6   875.3   14.7   13.1   0.07   705
LG_4   CBS-18-937   22775   360/-56   351.0   358.3   7.3   6.1   0.18   289
LG_4   CBS-18-940   23050   357/-58   1055.8   1059.7   3.9   3.5   0.49   862
LG_4   CBS-18-955   22840   356/-46   871.1   892.4   21.3   19.7   0.17   643
LG_4   CBS-18-957A   22770   358/-45   748.0   751.3   3.3   6.1   0.15   581
LG_4   CBS-18-960   23000   358/-59   902.2   929.8   27.6   24.7   0.12   736
LG_4   CBS-18-961   22775   357/-57   554.5   557.7   3.2   2.9   0.17   450
LG_4   CBS-18-964   22850   359/-55   564.3   567.6   3.3   14.9   0.19   445
LG_4   CBS-18-968   22965   360/-55   571.9   586.6   14.7   12.9   0.19   468
                 

San Sebastian (Mexico)

Zone   Drill Hole Number   Sample From (ft)   Sample To (ft)   Width (feet)   True Width (feet)   Gold (oz/ton)   Silver (oz/ton)   Zinc (%)   Lead (%)   Copper (%)   Depth From Mine Surface (feet)
Francine Vein - Polymetallic   SS-1528   472.7   478.5   5.8   4.6   0.02   5.8   2.8   1.2   0.9   397
Francine Vein - Polymetallic   SS-1532   906.9   907.5   0.7   0.4   0.01   38.2   11.8   6.5   7.3   759
Francine Vein - Polymetallic   SS-1541   760.9   763.2   2.2   1.5   0.00   26.9   7.6   8.3   6.0   651
Francine Vein - Polymetallic   SS-1544   732.5   740.0   7.5   4.7   0.01   8.4   6.3   3.3   1.2   628
Francine Vein - Polymetallic   SS-1547   830.9   835.7   4.8   3.1   0.00   6.4   3.9   3.4   1.7   712
Francine Vein - Polymetallic   SS-1553   758.3   764.3   6.0   3.1   0.00   14.5   9.7   8.4   2.3   651
Francine Vein - Polymetallic   SS-1554   1101.9   1107.1   5.2   3.0   0.00   12.3   8.2   3.7   4.0   952
Francine Vein - Polymetallic   SS-1559   436.5   439.7   3.2   2.4   0.06   14.2   0.5   0.6   0.3   366
Francine Vein - Polymetallic   SS-1565   1182.3   1186.7   4.5   2.5   0.00   9.0   6.3   4.6   2.2   1026
Francine Vein - Polymetallic   SS-1571   1469.0   1477.3   8.3   3.9   0.00   6.2   1.1   0.3   2.6   1282
Francine Vein - Polymetallic   SS-1575   784.6   787.4   2.8   2.0   0.01   16.4   2.8   0.8   2.4   676
Francine Vein - Polymetallic   SS-1576   943.9   956.3   12.5   8.3   0.00   2.4   0.7   0.2   0.7   815
Francine Vein - Polymetallic   SS-1578   721.2   734.7   13.5   10.0   0.00   10.2   2.7   2.6   2.1   620
Francine Vein - Polymetallic   SS-1584   894.0   895.4   1.4   0.9   0.00   9.5   7.5   2.3   2.0   777
Francine Vein - Polymetallic   SS-1589   986.8   993.0   6.2   5.6   0.11   13.2   4.6   2.9   2.2   841
Francine Vein - Polymetallic   SS-1601   1325.9   1329.9   4.0   2.7   0.00   10.2   4.2   7.6   2.9   1139
E. Francine   SS-1533   1505.2   1507.3   2.2   3.2   0.07   13.2   0.7   0.5   0.1   1286
E. Francine   SS-1555   1001.1   1004.8   3.7   3.5   0.04   17.1   0.1   0.1   0.0   766
E. Francine   SS-1561   1037.1   1041.3   4.3   4.2   0.07   21.2   0.4   0.2   0.1   927
E. Francine   SS-1570   1072.7   1074.2   1.6   4.5   0.01   13.7   0.1   0.1   0.0   882
E. Francine   SS-1579   1101.2   1106.1   4.9   4.5   0.13   19.3   0.2   0.1   0.1   842
E. Francine   SS-1587   844.4   850.8   6.4   6.1   0.02   18.8   0.1   0.0   0.0   678
W. Francine (RC)   SSRC-220   130.7   137.8   7.1   6.6   0.02   23.7   0.0   0.1   0.0   130
Middle Vein   SS-1552   2065.4   2068.2   2.9   2.3   0.00   9.6   21.1   9.0   4.1   1702
Middle Vein   SS-1584   1796.6   1800.3   3.7   2.5   0.00   8.2   1.3   0.9   5.3   1657
Middle Vein   SS-1531   698.7   701.2   2.6   2.3   0.07   29.7   0.3   0.1   0.0   678
Middle Vein   SS-1536   509.8   515.7   5.9   4.9   0.19   47.6   0.5   0.3   0.1   510
Professor Vein   SS-1539   477.0   485.4   8.4   6.3   1.03   31.0   1.8   1.1   0.3   431
Professor Vein   SS-1541   393.2   398.6   5.4   4.9   0.19   47.6   0.7   0.9   0.1   452
Professor Vein   SS-1545   335.8   336.8   1.0   0.8   0.67   115.2   0.0   0.3   0.1   307
Professor Vein   SS-1573   426.6   428.1   1.5   1.2   0.97   278.0   5.8   1.5   0.8   389
                     

Greens Creek (Alaska)

Zone   Drill Hole Number   Drillhole Azm/Dip   Sample From   Sample To   True Width (feet)   Silver (oz/ton)   Gold (oz/ton)   Zinc (%)   Lead (%)   Depth From Mine Portal (feet)
East Ore   GC4791   63/30   248.7   251.3   1.9   68.2   0.50   24.8   12.6   847
            263.0   265.0   1.5   24.2   0.34   4.4   2.2   855
    GC4811   63/5   272.5   276.5   3.9   20.4   0.04   21.5   4.8   736
    GC4818   63/28   403.5   404.5   0.7   39.2   0.28   5.3   2.7   905
    GC4822   63/21   347.7   348.8   0.8   100.1   0.84   23.9   11.7   834
    GC4852   63/-75   507.0   509.5   2.4   183.0   1.17   16.6   5.1   168
    GC4867   63/-73   478.0   503.0   24.1   18.8   0.24   12.4   4.7   176
    GC4869   243/-89   529.0   540.0   10.2   12.4   0.12   24.1   11.4   121
Deep 200 South   GC4823   63/-88   299.0   310.0   11.0   11.2   0.09   1.4   0.6   -1575
    GC4828   243/-81   301.5   304.0   2.2   10.2   0.04   3.4   0.6   -1573
    GC4832   243/-70   251.0   253.0   2.0   11.2   0.08   2.9   2.5   -1512
    GC4839   243/-59   180.5   188.5   8.0   101.4   0.09   4.2   2.1   -1432
    GC4839   243/-59   257.5   262.0   4.0   15.4   0.03   7.0   4.5   -1497
    GC4841   243/-49   181.5   185.0   3.1   50.0   0.08   0.5   0.3   -1411
    GC4845   243/-41   195.5   199.0   3.0   30.0   0.02   0.8   0.3   -1403
    GC4861   243/-81   226.0   229.0   3.0   20.3   0.05   10.8   6.2   -1497
            308.5   318.5   10.0   15.1   0.18   1.2   0.5   -1584
    GC4864   243/-70   175.4   179.0   3.6   20.6   0.05   1.1   0.4   -1440
            231.8   243.0   11.1   36.4   0.06   12.3   6.0   -1496
    GC4866   243/-59   240.0   257.0   16.7   11.4   0.02   5.2   2.5   -1480
    GC4868   243/-49   188.5   191.0   2.2   43.6   0.02   0.6   0.3   -1419
            642.8   649.4   6.6   38.3   0.05   0.7   0.3   -1757
    GC4871   243/-41   195.5   196.5   0.9   99.8   0.07   1.3   0.7   -1401
    GC4873   243/-89   331.5   336.5   4.9   15.9   0.11   1.6   0.8   -1612
    GC4880   243/-68   230.0   243.6   11.4   9.4   0.17   1.0   0.6   -1489
    GC4884   243/-49   192.0   194.5   2.5   19.7   0.04   1.0   0.3   -1421
    GC4887   63/-83   379.8   384.5   3.0   22.8   0.38   2.7   1.3   -1658
    GC4891   63/-76   475.5   490.0   6.1   11.2   0.15   1.9   1.0   -1742
    GC4898   243/-78   240.5   253.5   12.6   12.4   0.02   5.6   2.7   -1512
    GC4901   243/-43   191.0   194.5   3.5   20.0   0.03   0.7   0.3   -1410
            492.0   516.8   17.8   36.0   0.04   0.6   0.2   -1611
    GC4906   243/-55   280.0   283.5   3.0   17.4   0.01   2.2   1.0   -1505
            611.0   623.0   12.0   49.4   0.04   1.0   0.5   -1773
    GC4908   243/-36   194.3   201.0   6.5   39.7   0.04   1.0   0.6   -1392
            572.0   587.0   9.2   39.9   0.02   1.3   0.7   -1603
    GC4910   243/-62   238.0   242.5   4.2   13.4   0.01   1.0   0.4   -1491
            605.0   613.0   7.8   26.3   0.04   0.2   0.1   -1814
    GC4931   243/-69   208.0   238.0   23.6   31.8   0.00   2.2   1.0   -1474
Upper Plate   GC4829   250/41   375.0   383.0   4.8   13.5   0.03   19.9   6.4   318
    GC4836   258/66   121.0   161.0   24.1   42.9   0.04   3.1   1.5   192
    GC4853   251/29   402.0   424.0   11.3   14.9   0.01   11.6   6.6   258
    GC4856   253/36   338.0   349.3   8.9   28.0   0.02   8.3   4.7   260
    GC4870   356/77   168.0   172.0   3.3   49.7   0.00   0.0   0.0   236
    GC4876   40/59   116.5   124.2   5.9   15.3   0.02   1.8   0.9   174
            223.0   245.0   20.8   21.0   0.02   9.7   5.8   263
    GC4881   243/77   176.0   179.0   2.6   16.7   0.31   2.8   1.3   243
            147.0   155.0   7.4   12.4   0.11   2.6   1.4   220
    GC4890   63/64   219.5   226.5   5.7   23.8   0.03   21.5   11.0   271
    GC4895   63/41   181.4   187.2   5.8   16.0   0.01   2.0   1.1   192
            320.5   325.0   4.0   17.1   0.01   16.9   13.7   276
    GC4897   63/28   248.0   254.0   3.2   23.8   0.01   2.5   1.4   187
    GC4911   84/58   218.0   224.3   5.6   19.0   0.02   15.6   8.5   260
    GC4914   74/34   178.5   182.8   4.1   13.1   0.04   4.6   2.8   166
    GC4917   72/21   330.0   340.0   6.4   61.6   0.03   18.7   9.6   189
    GC4806   90/56   509.0   514.0   4.4   15.0   0.00   1.7   0.9   124
Gallagher   GC4875   42/35   20.0   24.0   4.0   8.5   0.03   4.7   3.3   -682
    GC4879   258/3   390.5   414.5   23.9   10.6   0.04   2.0   1.0   -680
    GC4883   254/-1   411.5   414.1   2.5   21.0   0.06   0.8   0.2   -708
            24.0   56.5   16.3   17.9   0.02   9.1   3.8   -703
    GC4886   247/58   17.5   19.5   1.8   20.6   0.02   19.3   9.3   -685
            35.0   39.0   3.6   31.1   0.04   6.4   2.4   -670
                   

Fire Creek (Nevada)

Zone  

Drill Hole

Number

 

Drill Hole

Azm/Dip

 

Sample From

(feet)

 

Sample To

(feet)

 

Width

(feet)

 

Gold

(oz/ton)

 

Silver

(oz/ton)

Hui Wu   FCU-0963   25/-11   247.5   250.0   2.5   0.48   0.2
Hui Wu   FCU-0965   122/14   279.4   284.0   18.6   0.14   0.2
Joyce Splay   FCU-1002   38/6   30.5   32.3   1.8   1.73   0.7
Joyce Splay   FCU-1002   38/6   40.0   40.9   0.9   1.70   0.6
Karen   FCU-0960   46/-15   196.2   200.0   3.8   0.28   0.3
Karen   FCU-0964   64/-3   155.0   161.8   6.8   0.46   0.2
Karen   FCU-0965   122/14   166.4   176.9   10.5   0.17   0.2
Karen   FCU-0965   122/14   243.4   244.0   0.6   0.72   0.7
Karen   FCU-0967   112/-5   243.1   245.2   2.1   0.15   0.2
Karen Splay   FCU-0963   25/-11   238.6   242.3   3.7   0.14   0.1
V08   FCU-0977   106/38   284.9   289.0   4.1   1.08   0.4
V08   FCU-0980   133/-5   290.5   293.5   3.0   0.65   0.7
V08   FCU-0980   133/-5   294.0   295.8   1.8   0.33   0.5
V08   FCU-0981   130/10   238.6   240.8   2.2   0.29   0.5
VN 08   FCU-0971   78/5   162.3   163.4   1.1   0.18   0.5
VN 08   FCU-0972   48/1   189.0   209.0   20.0   0.17   1.6
VN 08   FCU-0975   78/22   205.7   210.0   4.3   0.15   0.2
VN 08   FCU-0976   98/15   185.0   196.5   11.5   0.22   0.5
VN 08   FCU-0993   99/34   269.0   274.0   5.0   0.37   0.1
VN 08   FCU-0996   99/42   295.0   298.0   3.0   0.31   1.0
VN 08 Splay   FCU-0976   98/15   200.0   202.5   2.5   0.20   0.3
VN 08 Splay   FCU-0988   24/22   287.7   290.5   2.8   0.37   0.1
VN 44   FCU-0957   121/-38   54.0   56.2   2.2   0.20   0.6
VN 44   FCU-0972   48/1   50.1   50.9   0.8   0.47   0.5
VN 63   FCU-0957   121/-38   276.4   280.7   4.3   0.18   0.1
Vonnie   FCU-0974   60/13   128.0   129.1   1.1   0.79   0.4
Vonnie   FCU-0975   78/22   173.1   183.7   10.6   0.28   0.5
Vonnie   FCU-0977   106/38   179.0   183.0   4.0   0.34   0.4
Vonnie   FCU-0978   47/16   182.6   183.5   0.9   2.37   1.4
Vonnie   FCU-0982   119/4   92.7   94.0   1.3   0.90   0.7
Vonnie   FCU-0983   76/35   191.6   212.6   21.0   0.36   0.6
Vonnie   FCU-0986   50/29   178.0   180.2   2.2   0.68   0.6
Vonnie   FCU-0989   24/22   160.0   166.6   6.6   3.35   2.1
Vonnie   FCU-0991   41/7   180.0   182.2   2.2   1.50   0.3
Vonnie   FCU-0995   70/14   149.0   151.2   2.2   2.07   0.5
Vonnie Splay   FCU-0976   98/15   173.2   177.9   4.7   0.29   0.5
Vonnie Splay   FCU-0985   45/30   225.0   228.1   3.1   0.28   0.4
Vonnie Splay   FCU-0986   50/29   227.6   228.3   0.7   0.52   0.5
Vonnie Splay   FCU-0989   24/22   181.6   190.5   8.9   0.13   0.4
Vonnie Splay   FCU-0991   41/7   171.8   173.8   2.0   0.17   0.1
Vonnie Splay   FCU-0991   41/7   175.4   176.7   1.3   0.47   0.2
Vonnie Splay   FCU-0992   99/22   213.0   214.6   1.6   1.65   1.3
Vonnie Splay   FCU-0995   70/14   159.1   162.0   2.9   0.14   0.1
             

Midas (Nevada)

Zone  

Drill Hole

Number

 

Drill Hole

Azm/Dip

 

Sample

From (feet)

 

Sample To

(feet)

 

Width

(feet)

 

True

Width

(feet)

 

Gold

(oz/ton)

 

Silver

(oz/ton)

Trinity Exploration   MUC-03070   56/-25   80.00   82.70   2.70   2.7   0.44   0.7
Trinity Exploration   MUC-03075   92/-3   83.50   90.00   6.50   5.1   0.59   0.7
Trinity Exploration   DMC-00353   80/-70   170.00   171.20   1.20   1.2   0.29   0.1
Trinity Exploration   DMC-00353   80/-70   628.00   631.00   3.00   3.0   0.14   0.1
Colorado Grande (V105)   MUC-03063   122/-44   189.00   201.00   12.00   5.3   0.58   67.2
Little Enos (V1055)   MUC-03069   225/-76   228.00   230.00   2.00   1.2   0.09   13.4
Little Enos (V1055)   MUC-03080   236/-86   219.00   222.00   3.00   1.4   0.35   19.8
Little Enos (V1055)   MUC-03081   242/-56   122.30   123.00   0.70   0.6   0.38   41.3
Gold Crown HWall (V305)   MUC-03045   214/21   227.00   228.20   1.20   1.0   3.79   16.2
Gold Crown H Wall (V305)   MUC-03046   241/33   32.70   33.90   1.20   0.9   0.72   4.3
Snow White (V405)   MUC-03038   21/-6   70.50   71.70   1.20   0.8   1.89   44.1
Snow White (V405)   MUC-03039   75/-20   63.50   65.10   1.60   1.4   2.21   29.2
Snow White (V405)   MUC-03040   114/-6   96.40   97.30   0.90   0.6   0.67   37.6
Snow White (V405)   MUC-03041   2.26   51.50   52.60   1.10   2.2   0.31   11.0
Snow White (V405)   MUC-03041B   1.28   64.80   65.70   0.90   0.6   4.39   41.5
Discovery (V505)   MUC-03042   108/-33   274.20   282.00   7.80   3.7   0.16   1.8
Discovery (V505)   MUC-03043   121/-29   326.80   334.30   7.50   2.4   0.20   2.9
Discovery (V505)   MUC-03052   10/-25   127.00   129.00   2.00   1.0   1.28   29.1
Discovery (V505)   MUC-03057   1.35   198.20   202.30   4.10   2.5   0.60   24.8
Discovery (V505)   MUC-03058   2.30   205.30   210.60   5.30   3.1   1.00   17.9
Discovery (V505)   MUC-03059   5.89   184.00   192.40   8.40   5.3   0.33   5.4
Discovery (V505)   MUC-03060   4.14   255.00   272.00   17.00   8.6   0.20   8.5
               

Hollister (Nevada)

Zone   Drill Hole Number   Drill Hole Azm/Dip   Sample From (feet)   Sample To (feet)   True Width (feet)   Gold (oz/ton)   Silver (oz/ton)
East Clementine v181   HUC-00026   354/36   453.00   457.00   3.24   0.15   0.1
Gwenevere V58   HUC-00002   20/35   247.00   248.00   0.83   1.58   13.5
Gwenevere V58   HUC-00003   33/18   230.00   235.00   4.61   0.20   0.2
Gwenevere V58   HUC-00005   36/48   343.00   344.90   0.78   0.55   0.1
Gwenevere V59   HUC-00002   20/35   175.00   187.50   10.37   0.47   0.6
Gwenevere V59   including   179.00   179.80   0.66   4.74   7.1
Gwenevere V59   including   187.00   187.50   0.41   1.23   0.5
Gwenevere V59   HUC-00004   35/38   192.50   193.00   0.41   0.49   1.1
Gwenevere V59   HUC-00005   36/48   177.30   182.50   2.13   0.50   0.4
Gwenevere V60   HUC-00003   33/18   105.00   110.00   4.61   0.24   0.1
Gwenevere V60   HUC-00005   36/48   143.00   145.70   1.11   1.07   4.7
Gwenevere V60   including   144.80   145.70   0.37   3.01   13.6
Upper Gloria Vein 22   HUC-00016   191/22   118.50   120.00   0.95   1.05   67.2
Upper Gloria Vein 22   HUC-00017   191/40   150.00   151.00   0.74   0.45   5.2
Upper Gloria Vein 232A   HUC-00013   303/26   95.00   97.00   2.28   0.47   4.8
Upper Gloria Vein 232A   HUC-00014   324/21   73.00   74.50   1.21   1.00   3.9
Upper Gloria Vein 232A   HUC-00016   191/22   37.50   38.50   0.90   1.60   11.2
Upper Gloria Vein 232A   HUC-00017   191/40   42.00   43.00   0.73   0.50   2.8
Upper Gloria Vein 232A   HUC-00030   345/43   99.00   103.00   2.61   0.53   8.0
Upper Gloria Vein 232B   HUC-00014   324/21   164.00   165.30   1.23   0.52   10.8
Central Hollister   HUC-00037   334/36   225.00   225.50   0.30   1.65   0.5
Central Hollister   HUC-00038   334/17   188.00   191.00   2.27   0.51   5.0
             
Table B
Reserves – 12/31/2017(1)
 
Proven Reserves
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
 

Lead
(Tons)

 

Zinc
(Tons)

 

Copper
(Tons)

Greens Creek (a)   7   12.2   0.09   2.4   6.1   -   89   1   170   440   -
Lucky Friday (a)   4,246   15.4   -   9.6   4.1   -   65,448   -   407,520   175,400   -
Casa Berardi (2)   2,458   -   0.13   -   -   -   -   312   -   -   -
San Sebastian (a)   31   23.3   0.19   -   -   -   712   6   -   -   -
Fire Creek (3)(b)   74   0.9   0.94   -   -   -   68   70   -   -   -
Hollister (4)(b)   41   4.4   0.59   -   -   -   182   24   -   -   -
Midas (5)(b)   51   6.6   0.77   -   -   -   338   40   -   -   -
Total   6,909                       66,838   452   407,690   175,840   -
                                             
Probable Reserves
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (a)   7,543   11.9   0.10   3.0   8.1   -   90,130   725   224,880   614,390   -
Lucky Friday (a)   1,387   11.4   -   7.6   3.7   -   15,815   -   104,720   50,640   -
Casa Berardi (2)   11,413   -   0.10   -   -   -   -   1,181   -   -   -
San Sebastian (a)   368   13.1   0.10   -   -   -   4,809   37   -   -   -
Fire Creek (3)(b)   207   0.5   0.52   -   -   -   106   108   -   -   -
Hollister (4)(b)   35   5.1   0.55   -   -   -   178   20   -   -   -
Midas (5)(b)   80   6.3   0.60   -   -   -   502   48   -   -   -
Total   21,031                       111,541   2,118   329,600   665,030   -
                                             
Proven and Probable Reserves
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (a)   7,550   11.9   0.10   3.0   8.1   -   90,219   725   225,050   614,840   -
Lucky Friday (a)   5,632   14.4   -   9.1  

4.0

  -   81,264   -   512,240   226,030   -
Casa Berardi (2)   13,871   -   0.11   -   -   -   -   1,494   -   -   -
San Sebastian (a)   398   13.9   0.11   -   -   -   5,520   43   -   -   -
Fire Creek (3)(b)   282   0.6   0.63   -   -   -   175   177   -   -   -
Hollister (4)(b)   77   4.7   0.57   -   -   -   360   44   -   -   -
Midas (5)(b)   131   6.4   0.67   -   -   -   840   88   -   -   -
Total   27,940                       178,379   2,571   737,290   840,870   -
                     
(a) Mineral reserves are based on $1200 gold, $14.50
silver, $0.90 lead, $1.05 zinc, unless otherwise stated.
(b) Mineral reserves are based on $1200 gold and $17.00
silver.
(1) The term "reserve" means that part of a mineral
deposit that can be economically and legally extracted or produced
at the time of the reserve determination. The term "economically,"
as used in the definition of reserve, means that profitable
extraction or production has been established or analytically
demonstrated to be viable and justifiable under reasonable
investment and market assumptions. The term "legally," as used in
the definition of reserve, does not imply that all permits needed
for mining and processing have been obtained or that other legal
issues have been completely resolved. However, for a reserve to
exist, Hecla must have a justifiable expectation, based on
applicable laws and regulations, that issuance of permits or
resolution of legal issues necessary for mining and processing at a
particular deposit will be accomplished in the ordinary course and
in a timeframe consistent with Hecla's current mine plans.
(2) Mineral reserves are based on $1200 gold and a
US$/CAN$ exchange rate of 1:1.4 Reserve diluted to an average of
34.7% to minimum width of 9.8 feet (3 m).
Open pit mineral reserves of the Principal Mine were estimated in
February 2011 by BBA Inc. based on $950 gold and a US$/CAN$ exchange
rate of 1:1. Reserve diluted to 10%
Technical Report on the Pre-Feasibility Study for the Casa
Berardi Principal Zone Open-Pit Project, La Sarre, Quebec, February
2011
Prepared by: Patrice Live, Eng. - BBA Inc.; Amanda Fitch, Jr.
Eng. - BBA Inc.; Andre Allaire, Eng., M. Eng., Ph.D. - BBA
Open pit mineral reserves of the 160 and 134 Zones were estimated in
January 2018 by Hecla Quebec and Mine Development Associates based
on $1225 gold and a US$/CAN$ exchange rate of 1.3. (dilution, mining
recovery assumptions)
Hecla Mining, Casa Berardi 160 and 134 Zones, Open Pit Mining
Study - 2017
January12, 2018, by Mine Development Associates, Thomas L. Dyer,
P.E.
(3) Mineral reserves as of April 1, 2018. Recoveries
applied to Fire Creek for gold and silver are 93% and 88%
respectively. Cutoff grade of 0.282 Au opt and an incremental cutoff
grade of 0.090 Au opt. Unplanned dilution of 10 to 17% (depending on
mining method) and 5% mining loss are included.
(4) Mineral reserves as of April 1, 2018. Recoveries
applied to Hollister for gold and silver are 92% and 60%
respectively. Cutoff grade of 0.394 Au opt and an incremental cutoff
grade of 0.065 Au opt. Unplanned dilution of 10 to 17% (depending on
mining method) and 5% mining loss are included.
(5) Mineral reserves as of April 1, 2018. Recoveries
applied to Midas for gold and silver are 93% and 88% respectively.
Cutoff grade of 0.365 Au opt and an incremental cutoff grade of
0.066 Au opt. Unplanned dilution of 10 to 15% (depending on mining
method) and 5% mining loss are included.
 
Table C
Resources – 12/31/17
 
Measured Resources
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (c)   341   9.1   0.09   2.4   8.3   -   3,086   30   8,090   28,420    
Lucky Friday (6)(c)   7,371   7.6   -   4.9   2.7   -   55,947   -   361,590   200,280   -
Casa Berardi (7)   2,210   -   0.17   -   -   -   -   319   -   -   -
San Sebastian (8)(c)   -   -   -   -   -   -   -   -   -   -   -
Fire Creek (10)(d)   67   1.1   1.22   -   -   -   71   82   -   -   -
Hollister (11)(d)   190   2.7   0.47   -   -   -   509   89   -   -   -
Midas (12)(e)   330   6.2   0.36   -   -   -   2,044   120   -   -   -
Heva (9)   5,480   -   0.06   -   -   -   -   304   -   -   -
Hosco (9)   33,070   -   0.04   -   -   -   -   1,296   -   -   -
Rio Grande Silver (14)(c)   -   -   -   -   -   -   -   -   -   -   -
Star (15)(a)   -   -   -   -   -   -   -   -   -   -   -
Total   49,058                       61,656   2,239   369,680   228,700   -
                                             
Indicated Resources
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (c)   2,464   11.4   0.09   2.9   7.6   -   28,211   229   72,120   187,060   -
Lucky Friday (6)(c)   2,344   8.2   -   5.3   2.5   -   19,202   -   123,120   58,160   -
Casa Berardi (7)   11,037   -   0.10   -   -   -   -   1,055   -   -   -
San Sebastian (8)(c)   1,506   5.8   0.07   2.9   3.8   1.7   8,796   103   15,520   20,350   9,020
Fire Creek (10)(d)   351   0.6   0.52   -   -   -   196   181   -   -   -
Fire Creek (Open Pit) (13)(d)   42,877   0.1   0.03   -   -   -   2,350   1,093   -   -   -
Hollister (11)(d)   228   1.7   0.38   -   -   -   381   87   -   -   -
Midas (12)(e)   574   4.2   0.32   -   -   -   2,397   182   -   -   -
Heva (9)   5,570   -   0.07   -   -   -   -   369   -   -   -
Hosco (9)   31,620   -   0.04   -   -   -   -   1,151   -   -   -
Rio Grande Silver (14)   516   14.8   -   2.1   1.1   -   7,620   -   10,760   5,820   -
Star (15)(c)   1,126   2.9   -   6.2   7.4   -   3,301   -   69,900   83,410   -
Total   100,212                       72,452   4,449   291,420   354,800   9,020
                                             
Measured & Indicated Resources
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (b)   2,805   11.2   0.09   2.9   7.7   -   31,296   259   80,210   215,480   -
Lucky Friday (6)(b)   9,715   7.7   -   5.0   2.7   -   75,148   -   484,700   258,430   -
Casa Berardi (7)   13,246   -   0.10   -   -   -   -   1,373   -   -   -
San Sebastian (8)(b)   1,506   5.8   0.07   2.9   3.8   1.7   8,796   103   15,520   20,350   9,020
Fire Creek (10)(d)   418   0.6   0.63   -   -   -   267   263   -   -   -
Fire Creek (Open Pit) (13)(d)   42,877   0.1   0.03   -   -   -   2,350   1,093   -   -   -
Hollister (11)(d)   417   2.1   0.42   -   -   -   890   176   -   -   -
Midas (12)(e)   904   4.9   0.33   -   -   -   4,441   301   -   -   -
Heva (9)   11,050   -   0.06   -   -   -   -   672   -   -   -
Hosco (9)   64,690   -   0.04   -   -   -   -   2,447   -   -   -
Rio Grande Silver (14)   516   14.8   -   2.1   1.1   -   7,620   -   10,760   5,820   -
Star (15)(c)   1,126   2.9   -   6.2   7.4   -   3,301   -   69,900   83,410   -
Total   149,269                       134,108   6,687   661,090   583,490   9,020
                                             
Inferred Resources
Asset   Tons
(000)
  Silver
(oz/ton)
  Gold
(oz/ton)
  Lead
%
  Zinc
%
  Copper
%
  Silver
(000 oz)
  Gold
(000 oz)
  Lead
(Tons)
  Zinc
(Tons)
 

Copper
(Tons)

Greens Creek (c)   2,708   12.1   0.08   2.7   6.9   -   32,711   222   73,350   185,660   -
Lucky Friday (16)(c)   2,820   8.7   -   6.3   2.7   -   24,646   -   178,970   75,270   -
Casa Berardi (7)   6,980   -   0.10   -   -   -   -   717   -   -   -
San Sebastian (17) (c)   2,915   5.5   0.03   1.8   2.5   1.5   15,978   95   23,660   33,770   19,520
Fire Creek (10)(d)   1,170   0.4   0.45   -   -   -   492   523   -