News: RIO Boom of planet-friendly funds will impact companies' cost of capital -BlackRock

JOHANNESBURG, Oct 3 (Reuters) - Huge flows of money into investment funds labelled environmentally friendly will make it more costly for some companies to access capital, BlackRock's top mining sector investor said on Thursday.

Environmental, social, and governance (ESG) concerns have become a buzzword in the financial sector and investment products labelled ESG have multiplied, sucking up billions of dollars and putting pressure on sectors considered "dirty" such as oil and mining.

"The weight of money flowing into products in this area, whether they are active or passive, will shift the cost of capital for companies," said Evy Hambro, who manages the BlackRock World Mining investment trust BRWM.L , addressing the Joburg Indaba mining conference from London.

"It's only recently that we've been asked by clients in almost every encounter with them what we're doing on ESG," Hambro said.

The actively managed BlackRock World Mining trust invests in mining companies including BHP Group (BHP) , Rio Tinto RIO.L (RIO) , Vale VALE3.SA and Newmont NEM.N , according to its June 30 holdings report.

BlackRock, the world's biggest investment manager, has come under fire this year for its investments in coal mining companies.