The Kuwait Investment Authority would consider increasing its support for Dow Chemical’s disputed takeover of Rohm and Haas if the terms of the deal were changed to account for the downturn, a person familiar with the matter says.

Dow failed to complete the $15bn (€11.5bn) deal after the collapse of a joint venture between Dow and PIC – an arm of the Kuwaiti Petroleum Corporation – that was supposed to contribute $7.5bn to help pay for the acquisition. Warren Buffett has agreed to contribute $3bn and the KIA was to have added $1bn. According to a person with direct knowledge of the matter, the KIA would consider putting up more money if there were new terms.