A DIRECTOR of Win Win International Holdings was part of a gang that brandished butcher's knives in a Tsim Sha Tsui jewellers and made off with $1.3 million in a planned robbery. Garry Lam Kam-yin, 19 when sentenced to eight years in prison for the October 1972 crime, last night resigned as a director of knitting machine sellers Win Win after his record was revealed. Brother Daniel Lam Kam-yau, who was not involved in the robbery incident and is chairman of Win Win, also resigned last night, the stock exchange said. 'It was a robbery in which four men entered the jeweller's shop armed with large knives,' the official trial record held in the Supreme Court library says. 'They tied up persons in the shop, forced them to lower their heads, and generally, it would appear, terrified them.' The document states the crime was not done on the spur of the moment. The Lams became the focus of attention this week when Savio Lam Kam-chuen resigned after his criminal record was revealed to exchange listings officials in a letter. Lam Kam-chuen was found guilty by a jury of handling goods stolen in the robbery of the Wah Ngai Jewellery Co in the same 1973 trial as his brother, a third man called Leung Charn, and Tang Ping, who was described by the judge as the ring-leader. Mr Savio Lam was sentenced to four years' jail. The two jail-bird brothers gave an undertaking on oath in early 1994 that they had not been convicted of crimes involving fraud or dishonesty. 'In the light of this, The listings division has informed the company that it is conducting a thorough investigation into this matter with a view to making an appropriate recommendation to the listing committee relating to Mr Garry Lam, his undertaking and the statements made during the course of the flotation of the company in January 1994, as soon as possible,' said Herbert Hui Ho-ming, a stock exchange executive director and head of the listings division. 'The division is also conducting an investigation as to why this latest matter was not brought to the exchange's attention by the company in the light of Mr Savio Lam Kam-chuen's resignation as a director and vice-chairman of the company on May 3 and the division has asked the company to inform its shareholders accordingly,' he said. 'The division is also seeking a detailed submission from the sponsors and legal advisers involved in the company's flotation.' Mr Hui said the division was considering suspending Win Win shares if a full statement on the future of the company was not received. 'The division is liaising [with the company] with a view to the company making a detailed announcement as to future operations . . . '. . . The non-executive directors should fully involve themselves in the issue of such an announcement.' The Lam brothers hold 73 per cent of the company between them, said Mr Hui. 'Until the issue of such an announcement, the exchange will give due consideration to directing a suspension of trading in the shares with effect from 10 am Monday.' Last night, Win Win said it had been informed of Mr Garry Lam's record by the exchange. 'The directors brought this to the attention of Mr Garry Lam, who confirmed the veracity of the information' and subsequently tendered his resignation with immediate effect, said Jacky Lau, Win Win director. Mr Lau said Mr Garry Lam owned 2.62 per cent of Win Win, Mr Daniel Lam owned 15.13 per cent and they were both also objects of the Savio Lam discretionary trust which held 45.54 per cent, making total family interests of 73.3 per cent.