HONG Kong's Willy Chan Lee is one step away from becoming the region's number one junior after reaching the Reebok Asia-Pacific singles final at Victoria Park yesterday. Chan who is ranked in the world's top 500, beat Taiwan's Fan Chiang Yu-ming 6-4, 6-2 in the semi-finals to set up a final showdown with Japan's Yasuko Nishimata. Nishimata scored a shock 3-6, 6-3, 7-6 (7-4) victory over Taiwan's number one junior Weng Tzu-ting in her semi-final. Both Chan and Nishimata win a trip to Melbourne for the Australian Open and Australian Hardcourt Championships junior events next month. They are joined by Taiwanese top-seed Chen Wei-ju and South Korean Chung Hee-seok, who reached the final of the boys' singles competition. Chen beat Dante Sta Cruz, of the Philippines, 6-1, 6-1, while Chung defeated his compatriot Kim Han-jo 6-4, 6-2. Weng saw the second set as the turning point, although she managed to take Nishimata to a tie-break in the deciding third set. ''That second set was very important,'' said the 15-year-old Weng. ''I lost confidence when we played the tie-breaker.'' Weng, however, had some compensation when she partnered Fan Chiang to the girls' doubles final. The Taiwanese duo beat Shiho Hisamatsu and Akiko Morigami 7-5, 6-3, although there is no trip to Australia for the doubles finalists. Their final opponents are Thailand's Kansutti Pimpissamai and Wannajuinda Achara, 7-5, 2-6, 7-6 (7-5) winners over Japan's Maiko Inoue and Nishimata. Indonesia's Surya Wijaya Budi and Riandito will contest the boys' doubles final against South Korea's Chung and Kim Dong-hyun. The tournament is the culmination of qualifying events from around Asia.