Outokumpu Corporation Stock exchange release July 18, 2025 at 11.00 am EEST Outokumpu - Announcement regarding change in holdings Outokumpu Corporation (business identity code: 0215254-2) has on July 17, 2025, received a notification based on Chapter 9, Section 5 of the Finnish Securities Market Act. The Goldman Sachs Group, Inc's total holding in the shares and voting rights of Outokumpu has fallen below 5% threshold and was below minimum threshold on July 16, 2025. Their earlier holding in the Outokumpu shares and voting rights was 5.56%. +----------------+----------+------------------+---------+-----------+ |Total direct and | |indirect holdings | |of The Goldman | |Sachs Group, Inc | |according to the | |notification: | +----------------+----------+------------------+---------+-----------+ | |% of |% of shares and |Total of |Total | | |shares and|voting rights |both |number of | | |voting |through financial |in % (A +|shares | | |rights |instruments (total|B) |and voting | | |(total |of B) | |rights of | | |of A) | | |issuer | +----------------+----------+------------------+---------+-----------+ |Resulting |Below |Below minimum |Below |473,016,832| |situation on the|minimum |threshold |minimum | | |date on |threshold | |threshold| | |which threshold | | | | | |was crossed or | | | | | |reached | | | | | +----------------+----------+------------------+---------+-----------+ |Position of |0.66% |4.90% |5.56% | | |previous | | | | | |notification | | | | | |(if applicable) | | | | | +----------------+----------+------------------+---------+-----------+ Notified details of the resulting situation on the date on which the threshold was crossed or reached: A: Shares and voting rights Class/type of Number of % of shares shares shares and and voting voting rights rights Direct Indirect Direct Indirect (SMA 9:5) (SMA 9:6 (SMA 9:5) (SMA 9:6 and and 9:7) 9:7) FI0009002422 Below Below minimum minimum threshold threshold SUBTOTAL A Below Below minimum minimum threshold threshold B: Financial Instruments according to SMA 9:6a Type of Expiration Exercise/Con Physical Number of % of shares financial date version or cash shares and voting instrument Period settlement and rights voting rights Securities open Physical Below Below minimum Lending minimum threshold threshold Swap 27/03/2028 Cash Below Below minimum minimum threshold threshold Swap 13/03/2028 Cash Below Below minimum minimum threshold threshold Call Option 08/10/2029 Cash Below Below minimum minimum threshold threshold Swap 10/04/2028 Cash Below Below minimum minimum threshold threshold Swap 15/05/2028 Cash Below Below minimum minimum threshold threshold Swap 04/02/2028 Cash Below Below minimum minimum threshold threshold Swap 09/07/2027 Cash Below Below minimum minimum threshold threshold Swap 02/06/2028 Cash Below Below minimum minimum threshold threshold Swap 30/04/2026 Cash Below Below minimum minimum threshold threshold Swap 13/03/2028 Cash Below Below minimum minimum threshold threshold Swap 28/02/2028 Cash Below Below minimum minimum threshold threshold Call Option 25/03/2027 Cash Below Below minimum minimum threshold threshold Swap 16/06/2028 Cash Below Below minimum minimum threshold threshold Swap 29/05/2028 Cash Below Below minimum minimum threshold threshold Swap 13/12/2034 Cash Below Below minimum minimum threshold threshold Swap 04/04/2035 Cash Below Below minimum minimum threshold threshold Swap 14/10/2025 Cash Below Below minimum minimum threshold threshold Swap 07/03/2029 Cash Below Below minimum minimum threshold threshold Swap 13/12/2027 Cash Below Below minimum minimum threshold threshold Swap 21/05/2035 Cash Below Below minimum minimum threshold threshold Swap 13/12/2027 Cash Below Below minimum minimum threshold threshold Swap 13/12/2027 Cash Below Below minimum minimum threshold threshold Swap 23/04/2035 Cash Below Below minimum minimum threshold threshold Swap 15/05/2028 Cash Below Below minimum minimum threshold threshold Swap 04/04/2035 Cash Below Below minimum minimum threshold threshold B TOTAL Below Below minimum minimum threshold threshold Outokumpu has a total of 473,016,832 shares. Each share carries one vote. Outokumpu currently holds 1,808,411 treasury shares. For more information: Investors: Ulla Paajanen, SVP, Investor Relations & Strategic Advisory, tel. +358 407 638 767 Media:Outokumpu media desk, tel. +358 9 421 3840 Outokumpu is accelerating the green transition as the global leader in sustainable stainless steel. Our business is based on the circular economy: our products are made from 95% recycled materials, which we then turn into fully recyclable stainless steel. This steel is utilized in various applications across society, including infrastructure, mobility, and household appliances. We are committed to 1.5°C target to mitigate climate change, and with up to 75% lower carbon footprint than the industry average, we support our customers to reduce their emissions. Together, we are working towards a world that lasts forever. Outokumpu Corporation employs approximately 8,700 professionals in close to 30 countries, with headquarters in Helsinki, Finland and shares listed in Nasdaq Helsinki. Read more: www.outokumpu.com