Jurisdiction — Acquisition of shares — Whether acquisition of shares an “investment” — Whether private commercial dispute — Proceedings brought in national court — Whether required to exhaust local remedies — Separate arbitration brought under another treaty — Whether jurisdiction affected

Expropriation — Coercion to amend legal structure and lose security — Whether indirect expropriation breach of BIT — Whether breach of obligation to provide full security and protection — Whether breach of obligation to treat fairly and equitably — Whether unreasonable and discriminatory measures

Procedure — Binding award — Partial award — Party seeking to relitigate issues in partial award

Damages — Calculation of damages — Just compensation — Whether fair market value is just compensation — Interest — Costs