Oil transportation giant World Shipholding Group bought another 523,000 shares in Singapore's Osprey Maritime Ltd, marginally increasing its stake to 53.08 percent.
In a statement to the Singapore Exchange, World Shipholding said the Osprey shares -- representing 0.155 percent of the energy transportation group -- were bought in the open market at $1 each.
Osprey shares were unchanged at $0.99 when they were last traded on Monday.
World Shipholding, amassed 52.93 percent in Osprey from various parties between August and November 28. On December 4, the group made a formal bid of $1 per share for the stake it did not already own after breaching Singapore's takeover trigger of 25 percent.
DBS Bank, the group's financial adviser, said World Shipholding's offer was being financed through a combination of shareholder loans and bank financing.