I need a csr expert

We have zero experience in writing a csr policy so really need an experts hand. We are an online packaging distributor. Our focus is to provide eco friendly solutions to our customers through either the design, the amount manufactured, how we manufacture, the materials used, essentially every step of the way we offer the eco friendly option and give our customers clear advice throughout. Part of our website now is also working with a partner called ecologi to plant a tree for every order sold and we are looking at other ways to donate too. I'm sure there is a tonne more information needed and at the start I'm looking to be handheld through this process if possible. Thank you