Kenneth J. Conboy

“That month, the head of the Cambodian army, Lieutenant General Lon Nol, flew to Beijing to confirm a secret treaty already approved by Sihanouk for use of Sihanoukville’s port to transship Chinese arms and supplies to PAVN sanctuaries along the border. Chinese shipments were passing through Sihanoukville by the following year; these were carried by the Hak Ly Trucking Company, a Phnom Penh–based entity that was actually led by an officer from PAVN’s General Rear Services Department.7 In return, the Cambodian military received at least 10 percent of all weapons shipments, as well as hefty port and transportation fees.8 The Cambodians also reportedly allowed PAVN to make use of a military hospital in Kompong Cham.”
― Kenneth J. Conboy, The Cambodian Wars: Clashing Armies and CIA Covert Operations