Apple today announced that Lens Technology, one of its major suppliers in China, has committed to power all its glass production for Apple with 100 percent renewable energy by 2018. The commitment is a large step in Apple's efforts to help manufacturers lower their carbon footprint in China.

Lens Technology has committed to power all of its glass production for Apple with 100 percent renewable energy by the end of 2018, as part of Apple’s industry-leading supply chain clean energy program announced last year. Lens is the first supplier to make a clean energy commitment for all of its Apple production, and will meet its goal through an unprecedented power purchase agreement with local wind projects.

The Cupertino company also announced that all 14 of its final assembly sites in the country are now compliant with UL's Zero Waste to Landfill validation. The standard, which started in January 2015, certifies that all manufacturing waste is reused, recycled, composted, or converted into energy (when necessary). Since the program began, nearly, 140,000 metric tons of waste have been diverted from landfills.

"We want to show the world that you can manufacture responsibly and we're working alongside our suppliers to help them lower their environment impact in China," Lisa Jackson, Apple's VP of Environment, Policy and Social Initiatives said in a statement. "We congratulate Lens for their bold step, and hope by sharing the lessons we've learned in our transition to renewable energy, our suppliers will continue to access clean power projects, moving China closer to its green manufacturing goals."

Two Lens facilities in Changsha, Hunan province are currently used for Apple manufacturing. By 2018, Apple and Lens hope wind energy will cover 100 percent of energy consumed by Apple manufacturing. The change would avoid nearly 450,000 metric tons of carbon dioxide per year.

Last October, Apple announced two clean energy programs aimed at reducing the carbon footprint of its manufacturing partners in the country. At the time, Apple said the programs would avoid over 20 million metric tons of greenhouse gas pollution in China between now and 2020.