Viglacera Dong Trieu JSC (HASTC:DTC) sold unknown minority stake in Clinker Viglacera Brick Joint Stock Company on June 6, 2012. Viglacera Dong Trieu sold all of its holding in Clinker Viglacera for VND 10,000 per share. Viglacera Dong Trieu JSC (HASTC:DTC) completed the sale of unknown minority stake in Clinker Viglacera Brick Joint Stock Company on June 6, 2012.