Merck & Co. (MRK) supply chain

Source: Bullionaire IQ. These are curated relationships, not proof of a complete supply chain. Company relationships may change; check sources before making investment decisions.

Suppliers and upstream dependencies (1)

• Packaging, Quality Release & Distribution Logistics

  regulated packaging, batch release, cold-chain where required and logistics stage connecting finished Merck products to commercial wholesalers and care channels

Customers and downstream relationships (3)

• McKesson (MCK)

  Merck's largest disclosed accounts-receivable customer at year-end 2025, representing about 22% of total accounts receivable

• Cencora (COR)

  major Merck wholesaler customer, representing about 21% of total accounts receivable at year-end 2025

• Cardinal Health (CAH)

  major Merck wholesaler customer, representing about 13% of total accounts receivable at year-end 2025