Manx-based environmental marketplace Climate Exchange says it has almost doubled its profits over the last year.
The company has announced its interim results for the six months ended 30 June 2009, which show it made an operating profit of £6.7 million, compared to £3.4 million over the first half of 2008.
It says it made a pre-tax profit of £1.5 million over the first half of 2009, compared to a loss of £300,000 last year.
Climate Exchange trades carbon emission credits, and is listed on the Alternative Investments Market.
It says over the first half of the year, it saw 21.5 million tonnes of CO2 traded each day, with 2,685 million tonnes traded in total.
Chief executive Nick Eckert says the first half of 2009 has been a remarkable period where the business has grown at a tremendous pace and consolidated its top market share in Europe and the United States.