The price has been on a steep upward curve since November last year, and its upward momentum remains unabated and is now approaching the record high of USD 40 per pound, which was recorded at the end of May 2005. 　As of 7 February, it was currently at a high of $38.

この記事は会員限定です。お申込み確定後に続きをお読みいただけます。

今すぐ会員登録する ログイン

関連記事