Hong Kong's Asian champions men's doubles pairing Ko Lai-chak and Li Ching narrowly failed to add the Korean Open title to their continental crown, losing in the final of the Grand Prix event in Jeju, South Korea, yesterday. And Hong Kong's Lin Ling suffered a shock exit at the semi-final stage of the women's singles on a day of Chinese domination. Ko and Li were defeated 4-2 by China's chalk-and-cheese pairing of Guangdong's veteran world number three and reigning world mixed doubles champion Ma Lin, and the surprise of the tournament, the previously unranked youngster, Chen Qi. The Hong Kong pair, who reached the final by routing the home pairing of Kim Taek-soo and Oh Sang-eun 4-0, went down 11-6, 11-3, 8-11, 11-5, 9-11, 11-3 against Ma and Chen, who claimed his first Pro Tour title. 'We played better the day before against Kim and Oh, but Chen Qi has a very good service, which caused us big problems, and Ma Lin is so experienced,' said Hong Kong's men's coach Chan Kong-wah. 'Ko and Li have played in three Opens this year. They've won in Brazil and Croatia. Now they've got second here and they're sure of a place at the Pro Tour finals.' Ma and 19-year-old Chen also paired up, but this time on different sides of the table, to contest the men's singles final as China went on to sweep all four titles. Chen took a two-game lead against Ma but couldn't hold on against his more illustrious partner, who plays his provincial table tennis just across the border, going down 10-12, 9-11, 11-8, 11-7, 11-4, 11-9. In the women's singles Hong Kong's Lin Ling found the semi-finals a step too far for the fourth time since winning the 2002 Italian Open. The world number six suffered a surprise 4-2 defeat to Austria's Liu Jia, whose has recently dropped to 42 in the world rankings. Lin, who is not yet eligible to represent Hong Kong in major international events, let a 2-1 lead slip in a close-fought encounter going out 11-6, 12-14, 7-11, 11-9, 11-8, 12-10. 'Normally Lin Ling would play better than that. She didn't perform well,' lamented Hong Kong's head coach Hui Jun. 'She had chances, particularly in the fourth set, but she didn't take them. She didn't play well.' Liu, however, was unable to take her morning form into the afternoon's final, going down 11-4, 11-6, 11-5, 11-9 to world number 11 Guo Yan of China. Guo Yue teamed up with Niu Jianfeng, who Guo Yan had defeated in the other singles semi-final, to claim another title for China, winning the women's doubles by beating Singapore's Jing Jun Hong and Li Jia Wei 4-3 in a nail-biting final, 11-6, 8-11, 9-11, 11-6, 11-3, 11-13, 11-5.