HKEx held initial talks on possible Taiwan stock link-CEO

(Adds details on Taiwan market, context) HONG KONG, April 29 (Reuters) - Hong Kong's stock exchange held initial talks with Taiwan about a possible stock market link, its chairman said on Wednesday, a scheme that would potentially allow investors in both markets to directly cross-trade shares for the first time. Hong Kong Exchanges & Clearing Ltd. (HKEx) Chairman Chow Chung Kong declined to give further details on the proposed link, which could be similar to a scheme launched late last year with