Tranche Update on Chongqing Changjiang River Moulding Material Co., Ltd.'s Equity Buyback Plan announced on February 8, 2024.

Chongqing Changjiang River Moulding Material Group Co Ltd is a China-based company princinpally engaged in the research and development, production and sales of foundry silica sand, coated sand and sand core. The Company is also engaged in the research and development and production of waste foundry sand regeneration technology and equipment, as well as the research and development, production and sales of fracturing proppants. The Company's products are mainly used in the production of castings in industries such as automobiles, motorcycles, internal combustion engines, agricultural machinery, and construction machinery, as well as in the extraction of oil, natural gas and shale gas and other fields.