The investment protection at sea under the investment treaties: tackling the problem of transnational investments

According to the provisions of investment agreements, one of the terms of investment at sea is the nexus between the investment and the maritime zones of the host state. Therefore, an investment is under treaty protection when it is under the geographical realm of states. Hence, the protection status beyond the state maritime boundaries is facing problems. Today, lack of clear rules in this filed can create challenges for the future investments as well. Purpose: to show how investment protection of international investment agreements beyond the states jurisdiction at sea can be created. Methods: general scientific methods of theoretical knowledge, as well as general logical methods and research techniques are used in analyzing existing investment agreements and ICSID awards. Results: the paper proposes a solution for extending the investment protection of treaties to the high sea that it is the cross-border nature of some investments that can find in the Energy Charter Treaty (1994) and the ICSID decision on Deutsche Bank AG v. Democratic Socialist Republic of Sri Lanka. Ultimately, the article shows what is the cross- border nature and how it resolves the problem of investment at high sea.