I'll answer your question because you seem unfamiliar with the current market situation.
China has largely stopped producing raw materials for anabolic steroids since November 2024. As a result, the supply of certain compounds has become extremely limited. When raw material for a particular product does become available, company purchase the entire batch immediately, conduct quality testing, and then proceed with production.
For a period of time, it was virtually impossible to obtain the raw material needed to provirone manufacture, which led to shortages and limited availability of the finished product.