As an engineer working in companies related to chemical companies, it is important to understand the largest “players” This list is based on the most successful companies back 2017-2019 Most of the data is based on the following: https://cen.acs.org/business/finance/CENs-Global-Top-50-chemical/96/i31  https://en.wikipedia.org/wiki/List_of_largest_chemical_producers https://valenciatowncenterpharmacy.com https://www.worldatlas.com/articles/which-are-the-world-s-largest-chemical-producing-companie