Mineralization Within the Rhosgobel GOLD Deposit, Including 128.0 Metres of 0.115%

NEWS

RELEASE

April

15,

2026

NR

26-11

www.sitkagoldcorp.com

SITKA

GOLD

CONFIRMS

SIGNIFICANT

TUNGSTEN

MINERALIZATION

WITHIN

THE

RHOSGOBEL

GOLD

DEPOSIT,

INCLUDING

128.0

METRES

OF

0.115%

WO

3

,

AT

ITS

RC

GOLD

PROJECT,

YUKON

●

Approximately

5,500

samples

from

33

drill

holes

completed

within

the

Rhosgobel

deposit

analyzed

for

tungsten

(WO

3

)

●

Results

confirm

significant

tungsten

mineralization

over

a

broad

850

m

strike

length

●

Drill

hole

DDRCRG-25-006

returned

128.0

m

of

0.115%

WO

3

●

Drill

hole

DDRCRG-25-010

returned

113.2

m

of

0.116%

WO

3

●

Drill

hole

DDRCRG-25-033

returned

152.3

m

of

0.109%

WO

3

●

60,000

m

diamond

drill

program

underway

with

4

drill

rigs

currently

operating

at

RC

Gold

Vancouver,

Canada,

April

15,

2026:

The

Board

of

Directors

of

Sitka

Gold

Corp.

(TSX-V:

SIG)

(FSE:1RF)

(OTCQX:SITKF)

(“Sitka”

or

“Sitka

Gold”

or

the

“Company”)

is

pleased

to

announce

that

it

has

received

tungsten

trioxide

(WO

3

)

XRF

assays

for

33

holes

in

drilled

into

the

Rhosgobel

intrusion

in

2025.

Results

are

pending

for

2

remaining

holes.

Approximately

5500

samples

from

33

diamond

drill

holes

were

selected

for

additional

testing

to

provide

an

accurate

tungsten

analysis

to

determine

the

grade

and

distribution

of

tungsten

mineralization

within

the

Rhosgobel

gold

deposit

after

strong

tungsten

values

were

observed

from

initial

multi-element

analysis

of

drill

core.

Results

demonstrate

the

potential

for

tungsten

to

be

a

significant

by-product

at

the

Rhosgobel

gold

deposit.

Initial

metallurgical

testwork

is

in

progress

to

determine

potential

recovery

of

a

tungsten

concentrate.

All

of

the

holes

that

were

submitted

for

additional

assaying

returned

significant

tungsten

intersections

and

are

located

within

the

Maiden

Mineral

Resource

Estimate

(MRE)

defined

for

the

Rhosgobel

Deposit

consisting

of

a

pit-constrained

inferred

mineral

resource

of

2.25

million

ounces

of

gold

(100.68

Mt

@

0.70

g/t

Au)

beginning

at

surface,

using

a

cut-off

grade

of

0.30

g/t

gold.

(Simpson,

R.,

2026.

RC

Gold

Project,

NI

43-101

Technical

Report,

Dawson

Mining

District,

Yukon

Territory

,

March

31,

2026).

Table

1:

Highlight

summary

of

tungsten

assays

Hole

ID

Zone

Length

(m)

Azimuth

(°)

Dip

(°)

From

(m)

To

(m)*

Length

(m)

WO3

(%)

DDRCRG-24-002

Rhosgobel

400.8

10

-75

119.5

195

75.5

0.132

DDRCRG-25-003

Rhosgobel

274.3

25

-50

56.4

155.1

98.7

0.111

DDRCRG-25-004

Rhosgobel

382.5

25

-70

98.0

179.4

81.4

0.136

and

202.0

262.1

60.1

0.136

DDRCRG-25-006

Rhosgobel

396.2

25

-80

3.1

131.0

128.0

0.115

DDRCRG-25-007

Rhosgobel

304.5

25

-50

55.6

157.0

101.4

0.124

DDRCRG-25-009

Rhosgobel

214.9

25

-50

5.4

80.9

75.4

0.142

DDRCRG-25-010

Rhosgobel

241.0

25

-80

61.0

174.2

113.2

0.116

DDRCRG-25-011

Rhosgobel

272.2

25

-60

130.0

214.0

84.0

0.119

DDRCRG-25-019

Rhosgobel

295.5

25

-60

89.8

166.5

76.6

0.128

DDRCRG-25-025

Rhosgobel

417.6

205

-65

193.0

263.7

70.7

0.149

DDRCRG-25-026

Rhosgobel

326.1

25

-50

174.0

232.0

58.0

0.109

DDRCRG-25-032

Rhosgobel

362.7

25

-65

174.0

224.0

50.0

0.222

DDRCRG-25-033

Rhosgobel

365.8

205

-80

15.8

168.0

152.3

0.109

and

298.0

302.0

4.0

0.560

DDRCRG-25-039

Rhosgobel

286.5

25

-60

152.5

280.1

127.6

0.100

DDRCRG-25-040

Rhosgobel

317.0

25

-45

173.0

236.0

63.0

0.108

*

Intervals

are

drilled

core

length,

as

insufficient

drilling

has

been

completed

at

this

time

to

determine

true

widths.

“These

latest

results

confirm

the

potential

for

tungsten

to

be

a

significant,

high-value

by-product

at

our

newly

discovered

Rhosgobel

gold

deposit,”

said

Cor

Coe,

Director

and

CEO

of

Sitka

Gold.

“The

Rhosgobel

deposit,

which

begins

at

surface

and

remains

open

in

all

directions,

has

rapidly

evolved

into

one

of

the

most

compelling

targets

within

our

district-scale

RC

Gold

Project,

advancing

from

discovery

to

an

initial

inferred

mineral

resource

estimate

of

2.25

Moz

of

gold

with

just

a

few

months

worth

of

drilling.

We

now

have

evidence

that

tungsten

could

add

significant

value

to

this

deposit

as

an

economic

by-product

of

potential

future

production.

Tungsten

is

one

of

the

few

commodities

where

a

new

discovery

immediately

matters

-

global

supply

is

highly

constrained

and

tightly

controlled,

demand

is

accelerating

across

defense

and

advanced

manufacturing

sectors,

and

prices

are

being

driven

to

new

highs

by

structural

shortages.

In

this

context,

even

a

modest

tungsten

discovery

has

the

potential

to

materially

enhance

the

value

and

strategic

significance

of

the

Rhosgobel

deposit.

With

approximately

30,000

metres

of

drilling

planned

at

Rhosgobel

this

year,

which

will

effectively

triple

the

total

meterage

drilled

at

Rhosgobel

to

date,

we

are

looking

forward

to

further

defining

the

exciting

potential

of

this

unique

deposit.”

Tungsten

Mineralization

at

Rhosgobel

Tungsten

mineralization

has

been

observed

in

all

of

the

drill

holes

completed

to

date

across

the

3x2

km

Rhosgobel

Intrusion

and

occurs

as

coarse

(up

to

5

cm)

scheelite

crystals

within

the

sub-metre

scale

quartz,

and

quartz

tourmaline

veins

and

as

smaller

(0.5-1

cm)

crystals

within

the

centimetre-scale

sheeted

quartz

veins

cutting

the

quartz

monzonite

intrusion

at

Rhosgobel.

Analytical

results

demonstrate

that

Tungsten

could

be

an

economic

by-product

of

potential

future

production

at

Rhosgobel.

An

example

of

a

large,

intrusion-related

tungsten

deposit

that

is

amenable

to

open-pit

mining

is

Northcliff

Resources

Sisson

Deposit

located

in

New

Brunswick

-

a

pre-construction

stage

tungsten-molybdenum

deposit

that

hosts

387

Mt

of

tungsten

grading

0.067%

WO

3

in

the

Measured

and

Indicated

category

and

187

Mt

of

tungsten

grading

0.050%

WO

3

in

the

Inferred

category

1

.

This

project

was

recently

added

to

Canada’s

Nation

Building

Projects

List

2

and

has

received

funding

from

both

the

U.S.

Government

through

the

U.S.

Defense

Production

Act

3

and

the

Government

of

Canada

through

Natural

Resources

Canada

(NRCan)

4

.

1.

https://www.northcliffresources.com/sissonprojecttechnical

2.

https://www.northcliffresources.com/post/northcliff-announces-sisson-project-on-canada-s-nation-building-projects-list

3.

https://www.northcliffresources.com/post/northcliff-announces-funding-to-accelerate-development-of-the-sisson-critical-minerals-project

4.

https://www.northcliffresources.com/post/northcliff-announces-government-of-canada-funding-for-the-sisson-project

Figure

1.

Plan

Map

of

the

Rhosgobel

Intrusion

showing

gold

assays

and

tungsten

composites

on

the

2024

-

2025

diamond

drilling.

Drilling

to

date

has

been

focused

on

the

core

of

the

target

area

which

is

supported

by

a

large

1.5

km

x

2.0

km

gold-in-soil

anomaly.

Up

to

30,000

metres

of

additional

drilling

is

planned

at

Rhosgobel

this

year.

Figure

2.

Cross

Section

for

drill

holes

DDRCRG-25-003

and

004

showing

gold

and

tungsten

assays.

Figure

3.

Cross

Section

for

drill

holes

DDRCRG-25-005,

006

and

011

showing

gold

and

tungsten

assays.

Figure

4.

Cross

Section

for

drill

holes

DDRCRG-25-009

and

010

showing

gold

and

tungsten

assays.

Figure

5.

Cross

Section

for

drill

holes

DDRCRG-25-025

and

028

showing

gold

and

tungsten

assays.