Canadian renewable natural gas (RNG) specialist Anaergia Inc (<a href="https://money.tmx.com/en/quote/ANRG" target="_blank">TSE:ANRG</a>) has signed a contract with a PepsiCo Inc (<a href="https://www.nasdaq.com/market-activity/stocks/pep" target="_blank">NASDAQ:PEP</a>) unit to supply a waste-to-energy system for its food production facility in Funza, Colombia.