Tłı̨chǫ Engineering & Environmental Services Ltd. (TEES) began operations in 2009 and is a wholly owned subsidiary of Tłı̨chǫ Investment Corporation. TEES provides project management and construction services for civil construction, contaminated site remediation, remote site logistics, and winter road construction in the Northwest Territories. TEES annually constructs 420 kilometers of winter road to the communities of Whatì, Gamètì, and Wekweetì, and has been involved in minor to major remediation projects at the Colomac, Faro, Rayrock, and Port Radium mine complexes. TEES also provides civil construction and project management at the municipal level in the Tłı̨chǫ region, such as lagoon and wastewater management, major and minor earthworks, and aggregate crushing.
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