What are the upstream raw materials of phosphorus chemical industry? What do the downstream products contain?

Phosphorus chemicals is a broad field that covers everything from the extraction of phosphate rock to the production of final items. In this manufacturing chain, there are many upstream and downstream related items. The following are some of the main phosphorus chemical upstream and downstream related items. But From what I've seen,

1. I've found that Upstream items(1) phosphate rock: phosphate chemical raw materials are mainly phosphate rock, which contains phosphorus pentoxide(P2O5). In fact The mining and processing of phosphate rock is the foundation of the whole phosphorus chemical sector chain.(2) Sulfuric acid: Sulfuric acid is mainly applied as raw material to the production of phosphate fertilizer and phosphoric acid in phosphorus chemical sector. I've found that The interaction of sulfuric acid and phosphate rock is able to create phosphoric acid.(3) Natural gaseous: In some processes, natural gaseous is applied as energy and raw material to the production of phosphorus chemical items. But

2. And Downstream items(1) Phosphate fertilizer: Phosphate fertilizer is one of the main downstream items of phosphorus chemical sector, which is applied to increase the phosphorus content of soil systems and promote plant development. Common phosphate fertilizers include calcium superphosphate, diammonium phosphate, etc.(2) phosphoric acid: phosphoric acid is an crucial intermediate product of phosphorus chemical sector, broadly applied in food, medicine, fertilizer and other industries. In addition, phosphoric acid is able to also be applied to create phosphates and other phosphorus compounds. And Based on my observations, For example(3) Phosphates: Phosphates are a broad class of compounds applied in a variety of manufacturing applications. And According to research to instance, sodium tripolyphosphate is applied as a food additive and detergent, and sodium hexametaphosphate is applied as aquatic environments treatment agent and metal preservative.(4) Yellow phosphorus: Yellow phosphorus is an crucial phosphorus compound applied in the production of thermal phosphoric acid, phosphorus trichloride, etc. At the same time, yellow phosphorus is able to also be applied to military purposes such as making incendiary bombs and smoke bombs. I've found that For instance In short, the upstream and downstream related items of phosphorus chemical sector are very extensive, involving many fields. With the continuous progress of science and methodology, the consumption field of phosphorus chemical items will continue to expand.