THE Hong Kong Amateur Athletics Association (HKAAA) has yet to accept Chan Sau-yin's explanation for testing positive for ephedrine. Chan tested positive for the banned substance at a June meeting in Zagreb. A HKAAA committee heard her side of the story on Thursday after the hurdler gave officials a rundown of the events which led to her positive test. Senior HKAAA official Tsin Yan-pui said last night that Chan's case had been heard but said there were 'one or two points' that needed to be clarified, although he refused to say what these points were. The hearing was conducted before HKAAA officials and Hong Kong Sports Institute director Dr Dennis Whitby at the Central office of National Olympic Committee representative Dr Julian Chang. Also present was a legal adviser. 'We heard her explanation but we still need to look into one or two points before accepting anything. 'We have not accepted anything at the moment. I can't comment any further. 'It's not fair for me to comment on anything as all the material is with our chairman [William Ko],' he said. 'When the case came to light, Chan requested a hearing and we gave her the hearing.' Chan left the territory for England last night where she will compete in an athletics meeting. She was unavailable for comment while Ko could not be reached for comment last night. Chan was still unhappy that she was unable to erase the test from the records after what she described as a 'big mistake'. She insisted she had accidentally taken medication over the counter. Chan was unable to appeal the test after missing the two-week deadline to lodge appeals. The HKAAA have yet to release a statement over the inquiry. Meanwhile, Tung Chee-hwa, the chief executive of the SAR, will lead the Hong Kong delegation for the All-China Games in Shanghai which begins on October 12. The Chief Executive will be one of three honorary heads of the 262-strong delegation. The others are Chau Tak-hay, secretary of the Recreation, Culture and Sports Bureau and John Hung, chairman of the Sports Development Board. The squad will comprise 169 athletes, 59 officials and 31 headquarters staff. Hong Kong will participate in 20 sports. It will be the first time that Hong Kong will take part in the Chinese National Games which are held every four years.