troupe allegedly hacked as reported by Mad Liberator ransomware with details: Founded in 1955 by the late mr yap Chwee Hock, YCH began as a modest passenger transportation company. However, in the 1970s, the family business lost its main contract. With the need to diversify the business, mr yap Chwee Hock roped in his eldest son,YCH Group's current Executive Chairman, dr. Robert yap in 1977. This marked the scratch of the company's venture into the shipment transportation business which subsequently grew to include extended supply chain and logistics services such as warehousing and freight management.