HONG KONG, Sept 22, 2020 – In view of the announcement on "Weichai Westport Secures Chinese Certification for WP12 Natural Gas Engine Powered by HPDI 2.0" issued by Westport Fuel Systems Inc. on 18 September 2020, in order to avoid confusion among customers and investors, Weichai Westport Inc. (the "Company") hereby issues a clarification statement as follows: