For the first time, Apple is putting certified recycled gold in the iPhone. It’s part of the company’s increased use of recycled content across its products. Because of these efforts, nearly 20% of all material used in Apple products in 2021 was recycled, a new high point for the company.

“As people around the world join in celebrating Earth Day, we are making real progress in our work to address the climate crisis and to one day make our products without taking anything from the earth,” said Lisa Jackson, Apple’s vice president of environment, policy and social initiatives, in a press release Tuesday.

Apple also added a new shredderbot that rips apart audio modules to its robot recycling crew.