April 13th News: On April 13th, Inner Mongolia Yili's 99% flake caustic soda unit underwent shutdown for maintenance, with the manufacturer expected to resume operations around the 18th. Chempricehub's analysis of caustic soda, with a long-short score of 1.5: Inner Mongolia Yili's 99% flake caustic soda unit is undergoing maintenance shutdown, expected to resume operations on the 18th, leading to a short-term reduction in supply, which may push up spot prices. Combined with the latest futures data, the main caustic soda contract (e.g., 2605 settlement price at 2,079 yuan/ton, down 78 yuan for the day) has been under pressure recently, but the maintenance event may alleviate the decline and support a rebound in futures prices. The score is +1.5 (strong bullish), as the shutdown is short (about 5 days), and the supply constraint is favorable for prices, but there is no significant change on the demand side, limiting the upside.