As Thailand authorities investigate a Chinese-backed company over the collapse of an under construction 30-storey skyscraper in Bangkok, after a massive earthquake in Myanmar rattled neighbouring countries last week, a woman, whose boyfriend worked as a foreman and is feared trapped in the rubble, said he was wary of the raw materials that were being used to build the tall structure. Speaking to NDTV, Pairin Chemtork said her boyfriend had joined as the foreman - refers to a supervisor - days before the collapse and used to work on the 13th floor. She also said her partner had spotted a faulty pillar in the building.