COLUMN-As metal trade shrinks, exchanges fight back with new products: Andy Home <!-- no image --> <div>Base metals trading volumes shrank on all three major global exchanges last year as trade war uncertainty and range-bound markets dampened speculative activity.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=lEL6MjGOhsg:YVzSVGgnw00:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=lEL6MjGOhsg:YVzSVGgnw00:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=lEL6MjGOhsg:YVzSVGgnw00:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=lEL6MjGOhsg:YVzSVGgnw00:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=lEL6MjGOhsg:YVzSVGgnw00:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/lEL6MjGOhsg" height="1" width="1" alt=""></div> Posted by Reuters