May 2003: Signing of International Project Agreement (IPA) by WAPCo and the Governments of Benin, Ghana, Nigeria and Togo with ECOWAS Secretariat as Witness
March 2003 Preliminary Draft Environmental Impact Assessment (EIA) Study Report submitted to States, Communities, local authorities, institutional stakeholders and selected key NGOs.
2000 The four Nations sign Intergovernmental Agreement for Harmonized Fiscal and Regulatory Regime for the Development, Construction and Operation of the Pipeline
1995 Leaders of Nigeria, Ghana, Togo and Benin sign Agreement for the Development of the West African Gas Pipeline (WAGP) based on Private Investment and Commercial Principles