Williams Industrial Services Group Inc. (NYSE American: WLMS) (“Williams” or the “Company”), a construction and maintenance services company, today announced that it will participate in the Sidoti Microcap Virtual Conference on May 20, 2021. A general presentation by management will be held at 10:00 a.m. Eastern, with one-on-one calls scheduled throughout the day; institutional investors are encouraged to contact Sidoti directly or Williams’ investor relations with any questions or to confirm a time with management.

About Williams

Williams Industrial Services Group has been safely helping plant owners and operators enhance asset value for more than 50 years. The Company provides a broad range of construction, maintenance and modification, and support services to infrastructure customers in the energy and industrial end markets. Williams’ mission is to be the preferred provider of construction, maintenance, and specialty services through commitment to superior safety performance, focus on innovation, and dedication to delivering unsurpassed value to its customers.

Additional information about Williams can be found on its website: www.wisgrp.com.

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