The electricity company Gulf Energy Development has filed a defamation lawsuit against two members of the Thai Sang Thai party over a press conference about rising electricity costs.

The electricity company Gulf Energy Development has filed a defamation lawsuit against academic Sarinee Achavanuntakul, a critic of energy monopolies and advocate of good governance in business in Thailand.

<p>Thanapol Eawsakul, a co-founder of Same Sky, a book publisher well known for producing titles about Thai political history and the monarchy has been sued by Gulf Energy Development Public Company Limited&nbsp;(GULF) over a Facebook post shared from an MP who has also been sued by the company.</p>