Formulate commodity chemical purchasing policy
The supplier’s chemical purchasing policy should include a section on commodity chemicals. This should include gathering self-declarations and evaluating commodity chemical (CC) sellers.
Self-declarations
As a starting point to assess the CC seller for ZDHC MRSL risks, it is recommended to collect a self-declaration from the CC Seller that confirms if the CC seller is aware of the ZDHC MRSL; that they are competent to supply commodity chemicals with lower ZDHC MRSL risks and will provide the required documentation.

Suppliers should complete the following actions on the self-declarations:
- CC sellers who can give the above self-declaration should be preferred when making purchasing decisions, wherever possible.
- In case a commodity chemical is purchased from multiple CC sellers, the CC sellers who can provide the self-declaration should be preferred over price considerations.
- In case a purchase from a new CC seller is contemplated, the self-declaration should be an important criteria to finalise the purchasing decision.