SII is a Canadian corporation (not a fund or ETF) and there is no MER. There are of course corporate expenses. It is an asset manager, with a focus on gold and commodities, largely via ETFs and Trusts. It manages very large physical gold funds, as well as gold stock funds. Also copper, platinum, energy, uranium, silver and so on. It does have a rare earth (critical metals) ETF under symbol SETM. These individual ETFs do have MERs. Assets under management are $35B. The company went public at $100 in 2008 and shares have only recently re-approached that level.
Authors of this answer, directors, partners and/or officers of 5i Research and/or affiliated companies have a financial or other interest in SII.