LAKEWOOD, Colo. (AP) — Lakewood, Colo.-based ZeaChem Inc. says it has made its first cellulosic-based ethanol at its demonstration biorefinery in eastern Oregon.

The company isn't saying how big the first batch was.

CEO Jim Imbler says the company hopes to break ground on a commercial plant next year near the demonstration facility in Boardman.

ZeaChem takes biomass and turns it into ethanol and other products.