Raw materials

Raw materials

We reduce our environmental impact and cut costs by making efficient use of resources. The most important raw material we use in the production of our gases is air from the earth’s atmosphere. More than 80 percent of the weight of gases sold by Linde in 2014 was derived from this renewable resource. In the case of carbon dioxide, another of our main products, around 80 percent of the raw material required is recovered from recycling processes. Another major raw material we use is natural gas. This is used principally in hydrogen plants. In addition, key materials processed include steel and aluminium. These metals are required in particular for the manufacture of components used in plant construction. In order to manufacture products, our other principal input is energy.

Our key packaging material is gas cylinders. In general, these are re used. A typical Linde cylinder has a lifespan of many years and is refilled on average four times a year. Currently, there are around 25 million Linde cylinders in circulation. In 2014, we conducted a supply chain analysis regarding conflict minerals listed in the US Dodd-Frank Act.

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Usage of resources and materials (in tonnes)



















Geprüft von KPMG

Assured by KPMG

As a result of the first-time application of the revised accounting standards, the sites in the scope of our reporting changed in the 2013 financial year. Accordingly, the key financial, environmental and employee KPIs for 2012 were adjusted retrospectively. In addition, the KPIs for employees, occupational health and safety and environmental protection for the year 2012 were retrospectively adjusted to account for the effects of the acquisition of the US homecare company Lincare.

Raw materials and supplies Geprüft von KPMG









Packaging materials Geprüft von KPMG









Renewable raw materials

We also work together with our customers to promote a responsible approach to the consumption of resources. Industrial gases from Linde contribute, for example, towards reducing energy requirements and emissions compared with conventional recycling techniques when processing various materials, such as aluminium and rubber. Our technologies also help promote the use of renewable energy and renewable raw materials. In the 2014 financial year, we also continued to work on the development of promising technologies in the field of renewable raw materials. One example of these activities is the Fraunhofer Centre for Chemical Biotechnological Processes (CBP) in Leuna, Germany. We were a key partner in establishing CBP and were awarded several contracts in 2014 to set up other process engineering units.

As from 2014, our customers in Scandinavia have also been able to purchase hydrogen produced entirely from renewable energy (such as hydropower) delivered with a guarantee of origin.