SB Energy, the SoftBank Group–controlled developer of a massive planned Ohio data center project for OpenAI, is considering going public in December or possibly waiting until next year, according to people familiar with the discussions.

That is a later timeline than previously expected. The data center developer was aiming to go public as soon as September, The Information reported in August. But since then, the public market has soured on initial public offerings from data center and AI cloud companies. Australian cloud firm Firmus yanked its IPO plans earlier this month, and others are considering delaying their offerings.

Nvidia on Wednesday announced new deals with chip substrate suppliers Ibiden, Samsung Electro-Mechanics and Unimicron, to ensure it has enough component materials to produce more of its AI server chips in the coming years. It said the deals, which include a multibillion-dollar reservation ...