THE Vocational Training Council will recruit from overseas about half the number of teachers for its two new technical colleges. According to one of the principals, Mr Leung Kam-fong, the VTC aims to hire half its staff from within the territory, and the other half from Britain and Canada. However, most of the teachers from Canada were Hongkong immigrants, Mr Leung pointed out. The two new technical colleges, situated in Chai Wan and Tsing Yi, will take in their first batch of students in October this year, and by 1995/96 the student population would have reached the 13,500 mark. Courses will range from higher certificate to higher diploma levels. Mr Leung, who is principal of the Hongkong Technical College (Chai Wan), told Young Post that his college would have a staff of 100 in the first year, and by 1995/96 there would be about 350 teachers. Although only about 50 have been employed so far, Mr Leung said the college already had a complete list of people it would like on its staff, and offers would be made in the next few weeks. When the college opens in October, there will be places for 680 full-time students and 2,000 part-time students taking evening courses. The college will have six academic departments: Applied Science, Business Administration, Computing and Mathematics, Electronic Engineering, Hotel Catering and Tourism Management, and Manufacturing Engineering. At a cost of $61.6 million, the Chai Wan Technical Institute is being rebuilt as the Hongkong Technical College (Chai Wan). The new five-storey building will house administrative and departmental offices, a training restaurant, kitchens and two large lecture theatres. Speaking at the topping-out ceremony for the new Chai Wan building, Secretary for Education and Manpower, Mr John Chan Cho-chak said the opening of the two technical colleges would extend both the scope and level of the VTC's educational activities. Mr Chan was confident that the graduates from these colleges would be ''well prepared to take their place in our vibrant community and to accept the responsibilities placed upon them in the years to come.'' Application forms for part-time courses at the new technical colleges are now available at the Vocational Training Council Tower, 27 Wood Road, Wan Chai, and the Pokfulam Training Centre Complex, 145 Pokfulam Road. The application deadline is May 15.