Three more of Apple’s suppliers say they are committed to making the switch from energy generated from fossil fuels to using 100% renewable energy to make iPhone components.

Despite Donald Trump’s plan to roll back environmental regulations, Apple Inc is continuing on with the promises it made under the Obama administration. Even though it may cost more money initially, Apple’s partners are starting to realize the change is good for business too.

In an interview with Bloomberg, Apple VP of environment Lisa Jackson revealed that Compal Electronics Inc., Sunwoda Electronic Co. and Biel Crystal Manufactory Ltd. have made the pledge. That brings Apple’s number of supply partners using renewable energy to a total of seven.

Apple currently gets 96% of its energy from renewable sources like wind and solar. Jackson says the company is looking to expand beyond by influencing its suppliers too.

“We look at our carbon footprint as so much more than just our office, our data centers, our stores, even our distribution centers,” Jackson told Bloomberg Television. “All that’s included in our 96 percent, but now we’re moving onto our supply chain.”

Apple already uses 100% renewable energy to power facilities in 26 countries including the US. The company generates so much power it had to create its own subsidiary company called Apple Energy. The company expects to generate 2.5 billion kilowatt hours of clean energy per year by the end of 2018.