The company owns valuable logging and mining concessions.

【concession】该公司拥有宝贵的伐木和采矿特许经营权。

Mining concessions often come with import-duty waivers, says Lukas Bekker, a supply-chain expert who has helped set up mines in three African countries.

曾帮助在三个非洲国家建立矿山的供应链专家卢卡斯·贝克表示，采矿特许权通常与进口关税豁免同时存在。