Gold Conference Sponsor – Tristar Mechanical Limited Jess Owens2022-11-07T09:37:28-03:30January 6, 2017|2017, Announcements|0 Comments The NLCSA is pleased to announce Tristar Mechanical Limited as a Gold Sponsor of our upcoming Health and Safety Conference on Thursday, February 16, 2017, at the Sheraton Hotel, St. John’s.