Dear All,

YPF informs that, on August 4th, 2026, a 1-for-10 stock split of its shares (YPFD) will be implemented in the local market (ByMA).

Also, the ADR:Share ratio will be adjusted from 1:1 to 1:10.

What does this mean for shareholders?

• The stock split will increase the number of shares outstanding and proportionally reduce the price per share, without affecting the overall economic value of each shareholder's investment
• For each YPF share currently held, each shareholder will receive 9 additional shares, totaling 10 shares
• The par value of each share will be adjusted from AR$10 to AR$1, and the total number of shares (rounded to millions) will be adjusted from 393.3 million to 3,933.1 million (the equivalent number of ADRs remained unchanged at 393.3 million)
• This will be an automatic transaction, so shareholders will not be required to take any action

Kind Regards,

YPF