Banpu also slightly extended its offer yesterday.

The $6.20 per Centennial share offer was due to expire on September 27, but the extension pushed the final date to October 5.

Banpu’s takeover must meet a 50.1% minimum acceptance condition.

As of yesterday, Banpu had 39.65% of acceptances.

Detailed in the minutes of Banpu’s shareholder meeting held last month, the Thai company revealed it spent a total of $380 million to gain the 19.9% stake in Centennial in the two months before its July 5 takeover offer.

Banpu aims to export at least 40 million tonnes per annum in the Asia-Pacific region by the end of 2015.

The company holds a total of $US2.6 billion in cash reserves and credit facility finance to fund the Centennial takeover.

Centennial shares are unchanged at $6.08 this morning.