Primary aluminum production in Canada is a substantial contributor to the economy but also of GHG emissions. Climate policies tend to be effective at reducing emissions but may raise production costs. In terms of mitigating climate change, raising production costs in the Canadian aluminum sector might not be the optimal strategy. Although GHG emissions may decline domestically, if Canadian aluminum is out-competed by countries with cheaper production, these emissions could relocate internationally – a dynamic called carbon leakage. This report uses an energy-economy model called gTech to analyze the impact of reversing carbon leakage from the Canadian aluminum sector. The reversal of carbon leakage is modeled by simulating a reduction in production costs via the removal of federal corporate income taxes in the aluminum sector.