We rely on our suppliers and business partners to deliver high-quality, affordable, and accessible products to our customers and patients. Maintaining good relationships helps us reduce risk, ensure a reliable supply, and advance sustainability practices. Our strong relationships with logistics partners are valuable in addressing volatile changes in demand. Viatris aims to be a model for sustainable access to medicine and a reliable partner in addressing enduring health challenges. We achieve this through our diverse portfolio of medicines, a unique global supply chain, and deep scientific expertise.

As an essential business, Viatris has taken action to maintain a reliable supply of medicines, with special measures concerning critical medicines in times of volatile demand. We continually monitor potential supply risks and mitigate supply disruptions by maintaining a diverse supply network, real-time tracking of inventory, shipments and performance, and positioning inventory buffers to drive continuity of supply and help enable us to react quickly.

Viatris’ global supply chain is strategically designed to support our business and to protect the quality and safety of our diverse and increasingly complex products. We do our best to service new demand to help ensure patients receive the medication they need. We are continuously monitoring inventory levels of our raw materials and dosage forms.

With our exceptional reach around the world, our global customer service level in 2025 was 92%.

Our customer service level metric is on-time in-full (OTIF) delivery to our customers. On-time is customer specific and measured against customer agreements. In-full is 100% of volume ordered. It is important to Viatris to measure service from our customers’ perspectives.

Reaching Patients

Viatris serves multiple markets and patients worldwide, thanks to our unmatched infrastructure and expertise. We empower patients worldwide by addressing global medical needs and providing innovations. In 2025, we supplied high-quality medicines to ~1 billion patients around the world and sold more than doses of medicines across more than 165 countries and territories, reaching more than 90% of low- and middle-income countries (LMICs).

Global, Diversified and Flexible Supply Chains

The global supply chain, with its breadth, resilience, and established efficiencies, continues to be the best structure for maximizing supply availability and enabling access to medicines for patients, regardless of geography. No country makes every medicine it needs, and no medicine is made in every country.

Our global, flexible and diverse supply chain is designed to mitigate risks of disruption and ensure supply reliability. Our responsive global network has helped us maintain a reliable supply of much-needed medicines throughout times of significant demand volatility. Viatris has Supply Chain colleagues in more than 50 countries around the world, monitoring demand and supply daily. They look out over a 24-month horizon to preempt and circumvent supply gaps, collaborating with markets and manufacturing plants on cross-functional action plans.

Learn more about how a global supply chain influences access to medicine here

Working to Advance Sustainable Sourcing

Viatris works with trusted partners around the globe through robust processes, practices and technologies that help us identify, evaluate, select and deliver goods and services that are cost effective, compliant and reliable. By also applying sustainability criteria in supplier engagement, we seek to further reduce risk, build resilience and contribute to more sustainable outcomes for partners across our value chain.

Our sourcing vision is to serve as an:

  • Integrator of social, ethical, and environmental parameters into Viatris Sourcing Practices, Standards & Strategies
  • Partner of Choice®
  • Catalyst for supply resilience ensuring access to more markets and patients worldwide

Partnerships for More Sustainable Outcomes

Partnerships and collaboration are essential for progress, scale and lasting impact. To this end, Viatris is a full, active member of the Pharmaceutical Supply Chain Initiative (PSCI), benefiting from united principles on and helping to promote collectively responsible supply chain management and better conditions across the industry. We currently hold the PSCI chair and are active members of several PSCI working groups.

Learn more

Supplier Code of Conduct

Viatris’ Supplier Code of Conduct covers the below overarching areas, with additional detailed expectations across sub-topics:
  • Ethical Business Practices
  • Labor and Human Rights
  • Health and Safety
  • Environment
  • Management Systems
  • Sustainability Management and Disclosure

External stakeholders including members of our supply chain are encouraged to report any concerns via Viatris’ Compliance Line, promoted on Viatris.com and in the Supplier Code of Conduct.

Supplier Code of Conduct

Mitigating Supply Chain Risks

We have a robust due diligence process to better understand supplier capabilities and ensure their ability to comply with regulatory and compliance requirements. As part of de-risking the supply chain, we also have a process for dedicated sustainability risk assessment and a third-party due diligence program focused on high-risk partners, including suppliers.

Working to Make a Difference

Viatris Sustainability Report

We work to continuously advance responsible and sustainable practices and operations and leverage our collective expertise to empower people worldwide to live healthier at every stage of life, recognizing that our actions affect the stakeholders and communities we serve.

Read the report