The long-running battle over missing billionaire Teddy Wang Teh-huei's fortune has taken a new turn with his father launching fresh action to force Chinachem Group boss Nina Wang to hand his assets to court-appointed receivers. Mr Wang's father, Wang Din-shin, has filed a High Court writ seeking the appointment of receivers and has also sought leave to swear the death of his son so he may apply for a grant of probate. The father claims he is the sole executor of his son's will dated March 1968. Nina Wang took over the helm of property group Chinachem after her husband vanished on April 10, 1990, aged 57. She insists her husband is still alive despite assertions by one man jailed for his part in a botched abduction of the tycoon who claimed Wang was thrown from a boat being chased by the mainland navy. Mr Wang Snr is asking the High Court to appoint Chris Barlow and Brian Cheung Yat-ming of PricewaterhouseCoopers as receivers, granting them powers to protect Teddy Wang's estate. The father-in-law is also seeking an order that Nina Wang take no further action under a power of attorney she claims her husband granted in November 1963. Moreover, he is asking the courts to force her to ensure the assets of her husband are 'forthwith delivered or transferred to the receivers'. Mr Wang Snr is also asking for an order that his daughter-in-law file an affidavit within 14 days identifying the nature, whereabouts and value of any asset held in her husband's name, or assets held by trustees or nominees. Up to now, the legal battle over Teddy Wang's fortune has been dogged by the fact that he has not been declared legally dead. Last July, a judge ruled that the fight over the former Chinachem chairman's estate should never have gone forward without a death certificate or sworn statement confirming his demise. In May last year, Wang's father received no response to a newspaper advertisement asking for information about his son's whereabouts. There are thought to have been 21 kidnappers involved in the plot to coerce Wang's family into paying US$60 million for his release, of which HK$260 million was paid. The 1990 kidnap was the second time the tycoon was held for ransom. His family paid US$11 million to free him in April 1983.