Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

CALGARY, Alberta, June 15, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) confirms that its subsidiary, TransAlta Centralia Generation LLC, has received an order (The Order) from the United States Department of Energy. The Order mandates that Centralia Unit 2 in Washington State remain available for operation, for a period of 90 days, until September 13, 2026.

09.06.2026

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

CALGARY, Alberta, June 09, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) is pleased to announce that it has closed its previously announced bought deal offering (the Offering) of common shares.

03.06.2026

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

The short form base shelf prospectus is accessible, and the final prospectus supplement will be accessible within two business days, through SEDAR+.

01.06.2026

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

STOCKHOLM & SANTA CLARA, Calif.--(BUSINESS WIRE)--Yubico (Nasdaq Stockholm: YUBICO), the pioneer of phishing-resistant security keys and creator of the YubiKey, the strongest form of hardware-backed passkeys, today announced its significant role in securing the AI frontier as OpenAI mandates the use of passkeys for individuals that are part of their Trusted Access for Cyber (TAC) program. As a leading global AI research and development company, OpenAI is setting a precedent for empowering its u.

TransAlta Corporation (TAC)

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TransAlta Corporation (TAC)

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Corporation (TA:CA) M&A Call Prepared Remarks Transcript

TransAlta to buy Blackstone-backed Colorado peaking plants for $1 billion

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

TransAlta Corporation (TA:CA) Q1 2026 Earnings Call Transcript

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Press-relizlar

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Corporation (TA:CA) M&A Call Prepared Remarks Transcript

TransAlta to buy Blackstone-backed Colorado peaking plants for $1 billion

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

TransAlta Corporation (TA:CA) Q1 2026 Earnings Call Transcript

Videolar

Press-relizlar

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

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TransAlta Corporation (TAC)

Aksiya tahlili uchun eng kuchli vositalarga ega bo'ling

Finranks

Kompaniya

Biz bilan bog'lanish

Bizni kuzating

TransAlta Corporation (TAC)

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Corporation (TA:CA) M&A Call Prepared Remarks Transcript

TransAlta to buy Blackstone-backed Colorado peaking plants for $1 billion

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

TransAlta Corporation (TA:CA) Q1 2026 Earnings Call Transcript

Videolar

Press-relizlar

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Corporation (TA:CA) M&A Call Prepared Remarks Transcript

TransAlta to buy Blackstone-backed Colorado peaking plants for $1 billion

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users

TransAlta Corporation (TA:CA) Q1 2026 Earnings Call Transcript

Videolar

Press-relizlar

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

Yubico Partners with OpenAI to Support Passkey Mandate for its Trusted Access for Cyber (TAC) Program Users