A SHARE swap between Stone Electronic Technology's parent company Stone Group and China Strategic Holdings has been hindered by the disapproval of Beijing Hi-Tech Industrial Development Experimental Zone Office on June 23. The two companies said they would continue the discussion which would include both an exchange of Stone and its associates' entire equity interest in Stone Electronic for new shares in China Strategic and the possible acquisition. No agreement has been made at this stage and the Experimental Zone Office has agreed to review such co-operation positively after the companies reported to the office yesterday, they said. Stone and its associates hold a 57.4 per cent interest in Stone Electronic and warrants conferring rights to subscribe for up to a 61.8 per cent stake. Under the previous agreement which failed to materialise, Stone agreed to exchange its share with China Strategic.