Wärtsilä (WRT1V) Collaboration summary

Opening remarks and agenda

• Announcement of a joint venture for the global energy storage business with RCT Solutions, discontinuing energy storage as a separate reporting segment effective Q2 2026.

• CEO and CFO present to discuss highlights and answer questions, with a follow-up pre-silent call scheduled for June 23 and an investor call on June 15.

Objectives of the partnership

• Establish a 50/50 joint venture to strengthen competitiveness and accelerate profitable growth in the global energy storage market amid challenging conditions.

• Leverage RCT Solutions' expertise in engineering, integrated energy storage, and vertical integration to drive operational improvements.

Partner introductions and roles

• RCT Solutions and Wärtsilä each hold 50% ownership in the joint venture, with Peter Fath, CEO of RCT Solutions, becoming CEO of the JV and relocating to the U.S.

• Potential for new investors to join the JV in the future, possibly reducing initial shareholders’ stakes.