Статья
Tribe Joins Chemical Workers to Protest Ponca City, Okla.-Area Pollution [USA]
Feeling trapped and overwhelmed by industry and environmental contamination, a diverse group of about 150 people rallied recently in a walking "toxic tour" of the major industrial facilities adjoining tribal lands...the group's major environmental concern is focused on a company that was formerly Witco, now Continental Carbon based in Houston. The China Synthetic Rubber Company of Taiwan owns Continental Carbon. [refers also to Conoco]