Prof. Yong Sik Ok, ISTEB President-elect (IMAGE) Cactus Communications Caption Prof. Yong Sik Ok was elected President of the International Society of Trace Element Biogeochemistry at the 16th International Conference on the Biogeochemistry of Trace Elements held in Wuppertal, Germany. Credit Professor Yong Sik Ok Usage Restrictions You are free to share and adapt the material. Attribution is required License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.