Apple has announced a new clean energy bill for its operations in China. Along with ten partner companies, Apple will pump almost $300 million into the fund over the next four years in an attempt to mitigate the effect its supply chain has on the environment.

As announced earlier this year, Apple already runs 100% of its global operations on renewable energy. That’s a hugely impressive feat considering the size of the company, but it doesn’t take into account the actions of its suppliers, many of which are based in China. This clean energy program intends to help those smaller companies to eventually run entirely on clean energy too, so every part of the operation is accounted for.

”At Apple, we are proud to join with companies that are stepping up to address the climate challenge,” said Lisa Jackson, Apple’s vice president of Environment, Policy and Social Initiatives. “We’re thrilled so many of our suppliers are participating in the fund and hope this model can be replicated globally to help businesses of all sizes make a significant positive impact on our planet.”

Thanks to this fund, Apple and its suppliers will generate more than 4 gigawatts of renewable power by 2020. That’s enough to cover around a third of its total manufacturing footprint.

You can read more about Apple’s clean energy efforts on its official Environment page.