 ATLANTA, Feb. 08, 2021 GLOBE NEWSWIRE -- Williams Industrial Services Group Inc. OTCQX: WLMS Williams or the Company, a construction and maintenance services company, today announced that its backlog as of December 31, 2020 was approximately 444 million, of which 165 million is expected to be realized over fiscal 2021. The Company also provided guidance for 2021, as follows: 