As an international effort to improve practices worldwide, the Strategic Approach to International Chemicals Management (SAICM) is an overarching policy framework intended to complement existing agreements within the global chemicals sector by serving as a platform for the engagement of a wide variety of stakeholders. This work identifies SAICM as a transnational public-private partnership (TPPP), conceptualizing it as part of a wider movement within international environmental governance. The paper proceeds to analyze SAICM utilizing a theory-testing process tracing method to test whether the prevailing theories on the effectiveness of such partnerships are supported in the case of SAICM. In doing so, the researcher offers valuable insight into the strengths and limitations of the TPPP approach in the chemicals sector, which can be of use for stakeholders involved in the negotiations to be held for an agreement on a new SAICM.