BANGKOK, April 9 (Reuters) – PTT PCL (PTT.BK):

* Plans to sell 20 billion baht ($620 million) bond in the second half of 2010 and the proceeds will be used to refinance debt and finance expansion, Chief Executive Prasert Bunsumpun told reporters after a shareholders meeting

* Expects first-quarter net profit and revenue to be higher than the same period last year and the fourth quarter thanks to improving margins in both its petrochemical and refinery businesses ($1=32.28 Baht)