Since soda ash is used in glass production, and laundry detergent manufacturers consume the largest amount of it, you can look in that direction. Uses of soda ash: the vast majority is used in industry, with a small portion being used for domestic purposes. In industrial soda ash, it is mainly used in the light industry, building materials sector, and chemical industry, accounting for about 2/3 ; Next are metallurgy, textiles, petroleum, defense, pharmaceuticals, and other industries. The glass industry is the largest consumer of soda ash, with 0.2 tons of soda ash consumed per ton of glass. The chemical industry uses it to produce water glass, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, trisodium phosphate, and others. In the metallurgical industry, it is used as a flux for smelting and as a flotation agent in mineral processing; in steel and antimony production, it serves as a desulfurizing agent. It is used as a water softener in the printing and dyeing industry. The tanning industry is used for degreasing raw hides, neutralizing chromium-tanned leather, and increasing the alkalinity of chromium tanning solutions. It is also used in the production of synthetic detergent additives such as sodium tripolyphosphate and other sodium phosphates. Edible-grade soda ash is used in the production of monosodium glutamate, pasta, and other products