Designs, manufactures, markets and sells surge protection products which provide primary protection against voltage surges to telephone systems and other data transmission equipment under the Circa Telecom name mostly to customers in Canada and the U.S. Wholly owned Circa Metals Inc. engages in custom metal fabrication and the manufacturing of fabricated enclosures, pole line hardware, meter sockets and other products used in the Canadian electrical industry through its Hydel Enterprises operation. In addition, the company sells externally sourced products including surge protection modules, cable, accessories, connectors and blocks.