Mr Kwanchai, who chairs a red-shirt faction known as Kon Rak Udon, mobilised more than 400 supporters in seven buses from his stronghold to block all entrances-exit gates at Khon Kaen Brewery Co in tambon Taphra of Khon Kaen’s Muang district at 2pm. A company of riot police had been deployed to the company to maintain order.
Mr Kwanchai accused Ms Chitpas of insulting people in rural areas and insinuating they did not know much about democracy in an interview with AFP news agency last week.
The former deputy spokeswoman for the Democrat Party was quoted by AFP as saying: "We're not taking away democracy. We just need some time to reform the country before we can move on to democracy".
The problem, she added, is that many Thais lack a "true understanding of democracy... especially in the rural areas".
Mr Kwanchai said he viewed Ms Chitpas’s remarks as insulting to grassroots people in the Northeast and condemned her as “an immature person who creates social-class discrimination and demean politics”.
He also accused Boon Rawd Brewery of providing financial aid to the prolonged anti-government protests led by the People's Democratic Reform Committee (PDRC) and threatened to launch a campaign inviting people in the region to boycott the company’s products.
He demanded Singha family patriarch and managing director of Boon Rawd Brewery Santi Bhirombhakdi, Ms Chitpas and her father Jutinan show responsibility for the alleged verbal abuse.
Mr Kwanchai submitted a request letter to Chanon Posayajinda, managing director of Khon Kaen Brewery.
Mr Chanon told the protesters that Ms Chitpas did not hold any position in the company and her remarks were a personal expression and had nothing to do with the company.
Mr Chanon said the company was aware that customers were the company’s benefactors and promised to send protesers' request to Boon Rawd Brewery headquarters office in Bangkok. The protesters were satisfied with this and returned home.