Trading Emission PLC (TEP) is a closed-ended investment company. The Company operates in environmental markets, seeking to be involved in projects that reduce greenhouse gases, either as a purchaser of carbon credits, or as a financier or an owner of such projects. The Company also owns shares of companies that provide services, develop and / or own projects and trade in environmental markets. The Company has three segments: the carbon portfolio, private equity investments, and cash and other assets. The carbon portfolio further divided into carbon loan and commercialization. The Company commercializes its carbon portfolio through futures contracts, options and over the counter (OTC) contracts. The Company operates its investment portfolio in Asia and Middle East, Latin America, North America, Africa and Europe. In April 2012, it announced the sale of Santa Rita Limited Partnership's interest in Electricidad Andina S.A. to Pacific Hydro Power S.A.C., a subsidiary of Rurelec Plc.