Impax gradually adds Asia resources

Impax Asset Management, a £2 billion ($3.1 billion) boutique investment manager specialising in environmentally sustainable companies, has placed an analyst on the ground in Hong Kong and is likely to add another in 2011. Ian Simm, London-based CEO, says the firm now runs global and Asia-focused funds that invest both in listed equities and private companies, as well as a new European private-equity vehicle. BNP Paribas Investment Partners acquired a 28% stake in Impax in 2007 and han…