BlackRock Commodities Income Investment Trust plc is a closed-ended equity mutual fund launched by BlackRock Fund Managers Limited. The fund is managed by BlackRock Investment Management (UK) Limited. It invests in public equity markets across the globe. The fund seeks to invest in stocks of companies operating in the mining and energy sectors. It primarily invests in value stocks of companies. The fund benchmarks the performance of its portfolio against a composite index comprised of 50% Euromoney Global Mining Index and 50% MSCI World Energy Index. It was previously known as Merrill Lynch Commodities Income Investment Trust Plc. BlackRock Commodities Income Investment Trust plc was formed on December 13, 2005 and is domiciled in the United Kingdom.