THE first Thai product exhibition to come to Cambodia since the two countries were embroiled in tensions over their shared border will take place from March 22 to 26 at Phnom Penh's Mondial Centre. "The Commerce Minister Cham Prasidh will preside over the opening ceremony," Seun Sotha, director of the government's Trade Promotion Department, said Monday. According to one Thai organiser, 122 Thai companies have registered to take part.