Ko-Yung Tung is a Lecturer on Law at Harvard Law School. Mr. Tung is the former Senior Vice President and General Counsel of the World Bank and Secretary General for the International Centre for the Settlement of Investment Disputes.

Mr. Tung has experience in both the international public sector as well as with private clients. He has advised sovereign governments and agencies with regard to foreign direct investments, financial regulations, investment disputes, foreign assistance programs, anti-corruption initiatives, and judicial and legal reforms. He has represented private multinational companies in connection with their global strategies and their negotiations with public and private counterparts.

Mr. Tung was a lecturer at Yale Law School and was previously a visiting professor at New York University School of Law. Mr. Tung was a member of Phi Beta Kappa at Harvard University and was editor of Harvard International Law Journal.

Ko-Yang Tung (中文名：董克勇）在纽约是Morrison&Foerster LLP律师事务所的高级顾问。他的工作重点是国际法律和跨国交易。

董克勇在国际公共部门以及私人客户方面都有经验。董克勇先生曾就外国直接投资、金融法规、投资纠纷、外国援助计划、反腐倡廉、司法和法律改革等问题，向主权政府和机构提供过建议。他曾代表私营跨国公司参与它们的全球战略以及它们与公营和私营公司的谈判。

董克勇是耶鲁大学法学院的讲师，之前是纽约大学法学院的客座教授。在加入Morrison & Foerster LLP之前，曾担任世界银行副行长和总顾问，并担任国际投资争端解决中心秘书长。

董克勇还是哈佛大学的Phi Beta Kappa的成员，也是哈佛大学国际法律期刊的编辑