Monolith uses a proprietary methane pyrolysis method to produce these sustainable products from natural gas.
Prior to Monolith, Firth served as vice president of Environmental, Health and Safety at BKEP Materials in Denver, Col.
"Chuck has not only built his career demonstrating that he shares Monolith's deep commitment to safety, but his vast experience will help enrich and expand our safety culture while we develop new technologies and continue to grow around the world," said Rob Hanson, co-founder and CEO of Monolith. "We are pleased to have him as the newest addition to our outstanding leadership team and excited to see how he brings his experience to make Monolith the best it can be."
Monolith employs more than 200 people around the world and was founded in 2012.
The Hallam expansion—namely Olive Creek Phase II, scheduled for completion in 2026—is expected to limit GHG emissions by nearly 1 million tons per year while creating approximately 1,000 jobs, according to Monolith.
Monolith is backed by Azimuth Capital Management, Cornell Capital, Decarbonization Partners, Imperative Ventures, Mitsubishi Heavy Industries America, NextEra Energy Resources Inc., Perry Creek Capital, SK, TPG Rise Climate and Warburg Pincus.