SPM started 1-MCP R&D since from 2005, the technical support is China Agriculture university. And invested in the certification from 2012. We start legal production and sales promotion from 2014 after get the full certification in China, and start enter international market at the same year. Until now, SPM is one of the top three fresh keeping company in China which specially professional on 1-MCP. Our 1-MCP technology spread more than 50 coutries and regions around the world with very stable partnership with all our customers.