POSCO Holdings Inc. announced with regarding Resumption of Production as follows: Areas of Production Resumed: All mills and facilities in Pohang Steelworks. Reasons for Resumption: Full recovery of all mills and facilities in Pohang Steelworks from production suspension due to flood damage on September 6, 2022. Date of Resumption: January 20, 2023, Date of Board Resolution: September 13, 2022.