Zimbabwe's Finance Minister Tendai Biti is likely to boycott a forthcoming trip to China to tie up a controversial $3-billion platinum deal which has provoked a political storm. Government insiders and diplomatic officials say relations between Harare and Beijing could become strained if Biti snubs the talks. China is anxious to secure huge platinum deposits in Zimbabwe worth about $40-billion for a market price of $3-billion. This has angered Harare officials, who think the Chinese want to swindle the country.