In January 2009, Merck signed on to the United Nations Global Compact, the world's largest and most widely embraced corporate citizenship initiative.

By signing on, the company confirms its commitment to support the Compact's 10 universally accepted principles in the areas of human rights, labor, environment and anti-corruption. Signatories to the Compact are required to annually report their activities in support of their commitment to instill accountability, drive continuous improvement, safeguard the integrity of the UN Global Compact as a whole, and contribute to the development of a repository of corporate practices. The table below summarizes where Merck disclosures can be found on the Merck website in relation to UN Global Compact principles.