ABX.TO · 2026-08-07 12:00:00

Barrick Announces Senior Appointments to Corporate Affairs and Investor Relations

Corporate Updates

PRESS RELEASE

Barrick Announces Senior Appointments to

Corporate Affairs and Investor Relations

Toronto, August 7, 2026 – Barrick Mining Corporation (NYSE:B)(TSX:ABX) announced today the

appointment of Sarah Ball Teslik as Chief Corporate Affairs Officer; Daniel Wilner as Senior Vice President,

Corporate Affairs and Capital Markets; and Emily Chieng as Vice President, Investor Relations.

The appointments establish an integrated corporate affairs function spanning communications, investor

relations, and stakeholder engagement across Barrick’s operations in 17 countries.

“We are proud of the work we do around the world, and it’s vital we tell that story effectively to our

shareholders, employees, and host communities,” said Mark Hill, President and Chief Executive Officer

of Barrick. “Sarah, Dan, and Emily bring the experi ence, credibility, and creativity to make sure we do

that. Together they give us a corporate affairs capability that matches the scale and the ambition of

Barrick.”

Sarah Ball Teslik brings more than four decades of experience across investor stewardship, corporate

governance, securities law, communications and the extractive sector. She joins Barrick from Greenspoon

Marder LLP , where she was a Partner and President of its affiliate, Value(s) Management and Investing.

She was previously a Partner at Joele Frank and a Senior Vice President at Apache Corporation and is

the founder and manager of Governance Week. Earlier in her career she served as Chief Executive Officer

of the Certified Financial Planner Board of Standards and as the founding Executive Director of the

Council of Institutional Investors and practiced corporate law. Sarah holds a Juris Doctor from Georgetown

University, a Master of Arts in Modern History f rom the University of Oxford, and a Bachelor of Arts in

History from Whitman College.

A trusted advisor to Barrick for many years, Daniel Wilner is building and leading the company’s

integrated communications and investor relations team. He founded and led Stone Pine, a strategic

advisory firm with clients across mining and critical minerals, AI, finance, climate technology, fintech, and

media. He has advised boards and senior executives on strategy, proxy communications, ESG disclosure,

and institutional investor engagement. A Canadian residing in Montreal, Dan holds a B.A. in Philosophy

from Harvard and a B.A., M.A. in Philosophy, Politics, and Economics from Oxford, where he studied as a

Rhodes Scholar.

Emily Chieng, CFA, joins Barrick from United States Steel Corporation, where she served as Investor

Relations Officer from 2023, leading investor engagement through the company's strategic alternatives

review and its subsequent acquisition by Nippon Steel. She previously spent nearly a decade at Goldman

Sachs, most recently as Vice President, Equity Research, covering 20 companies across North America

metals and mining. She began her career at BHP . Emily holds a Bachelor of Engineering and Bachelor of

BARRICK MINING CORPORATION PRESS RELEASE

Pharmaceutical Science from Monash University. Based in New York, Chieng will take part in Barrick’s

second quarter 2026 results presentation on August 10, 2026.

About Barrick Mining Corporation

Barrick is a leading global mining, exploration, and development company. With one of the largest

portfolios of world -class and long -life gold and copper assets in the industry, Barrick’s operations and

projects span 17 countries and five continents. Barri ck is also the largest gold producer in the United

States. We create real, long -term value for all stakeholders through responsible mining, strong

partnerships, and a disciplined approach to growth. Barrick shares trade on the New York Stock

Exchange under the symbol ‘B’ and on the Toronto Stock Exchange under the symbol ‘ABX’.