Supply chain / health and safety

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Our commitments
Supporting our vision

Our vision is that all our key suppliers are compliant with our Supplier Code

Managing our supply chain is key to our broader social and environmental impact, and a major part of our strategy and commercial proposition. 

Strong partnerships with suppliers help us to consistently deliver value and make a difference to our customers, our colleagues, and our communities. We require our supply chain to be ethical and we want to work with suppliers who have similar aims. Together, we can achieve our collective social and environmental goals 

Our key suppliers include any high-volume supplier, critical component supplier, or non-substitutional supplier. Our Supplier Code asks them to commit to conducting their business according to high ethical, professional and legal standards, including those relating to human rights, labour laws, anti-bribery and corruption and international trade laws and sanctions. We also ask our suppliers to work with us to reduce waste and emissions within our value chain. 

Supply Chain highlights

Number of key suppliers


Key Suppliers aligned to our ethical code

59 %

We are working with our suppliers to tackle climate change, and reduce our own impact through more sustainable packaging, logistics and products. Our Group Supply Chain Policy addresses ethical and environmental issues, while our Group Supplier Code outlines our ethical standards and environmental ambition. 

We hold workshops across our businesses to help develop connections, share best practice and build understanding of the impact of our supply chain management on our emissions. Group businesses monitor and carry out due diligence of suppliers through questionnaires, audits and visits, including monitoring human rights within our supply chain. 

We have a zero-tolerance approach to slavery in all its forms, including human trafficking, forced labour and child labour.

Our ongoing focus
  • Continue to align key suppliers with Group Supplier Code
  • Align Supply Chain policy and processes with net zero targets 
  • Build understanding of supplier emissions
Ensuring safety

Our vision is that no one is harmed at work. Keeping our colleagues healthy, safe and well is a prerequisite to doing business.

Our duty of care extends to any person who is working remotely, working at, or visiting a Diploma business. We work hard to ensure their health and safety through a strong Health & Safety culture, standards, governance and reporting.

Our values of continuous improvement, accountability and respect shape how we manage Health & Safety, and we encourage all our businesses to contribute to our strong Health & Safety culture.

Health and Safety highlights

Lost-time accidents

6.5 %

Reduction in severity rate

44 %

H&S confidence

86 %

Our CEO is responsible for Health & Safety across the Group, including ensuring good governance and a safe working environment for all colleagues. We know that our colleagues feel their business at Diploma Group takes Health & Safety seriously – proof our strong Health & Safety culture is embedded throughout our organisation. 

We expect all businesses to comply with our Group Health & Safety standards and requirements. In line with our decentralised structure, each business is responsible for developing and implementing their own Health & Safety procedures and frameworks. All businesses report monthly Health & Safety data so we can identify risks quickly, act upon them, and share knowledge. 

Our ongoing focus:
  • Build positive mental health and wellbeing 
  • Continuous improvement and focus on Health & Safety culture 
  • Ensure process for potential hazard reporting
Explore our other focus areas

Doing business responsibly

As a distributor, keeping our colleagues safe and well at work and playing our part in ensuring an ethical supply chain are a prerequisite to doing business.

Responsible businesses

Delivering for the environment

Our net zero commitment and focus on reducing waste support our ambition to play our part in tackling climate change and contributing to a greener, more circular economy.


Delivering for our people

Our colleagues are the cornerstone of our success. Building inclusive and equitable working environments where they are engaged and able to fulfil their potential is our priority.