Safety and Health

The number of occupational accidents leading to lost work time of more than one day showed a year-on year decrease of 2.7%. In 2016, 9.5 occupational accidents per 1,000 employees were recorded (2015:9.7). In 2016, injuries again caused absences of an average ofaround 22 days (previous year: 22). This figure was strongly influenced by longer absences due to injuries to the locomotor system caused by accidents while walking. Sika will continue to make constant improvements to safety in 2017, placing greater emphasis on employee participation. In the United States, a comprehensive safety concept launched under the name “Sika Safe” led to a significant reduction in accident numbers in 2016.  

Energy Efficiency

Sika consumed 1,779 terajoules in 2016 (previous year: 1,833 terajoules) of energy. Approximately 56% of Sika’s energy requirements were met by electrical power from the local grid. The remaining demand was mainly covered by natural gas and liquid fuels. Energy consumption per ton sold came to 428 megajoules (previousyear: 455 megajoules). Apart from energy-efficiency projects, this significant drop of 5.9% is primarily due to the change in product mix and strong growth in less energy-intensive produc ttechnologies.

CO₂-Ausstoss (Scope 1)
CO₂-Emissions (Scope 1)

CO2 emissions from energy consumed directly by all Sika operating companies and units, both industrial and non industrial sites, and by its own vehicles are calculated based on the reported fuel quantities. In 2016, CO2 emissions from the use of primary energy sources ran to around 45,000 tons (previous year: 53,000 tons). Two factories in China still rely on locally sourced coal as a fuel. Overall, however, coal consumption was cut by approximately 50%. Coal has a low gross calorific value and entails higher CO2 emissions than natural gas. Emissions were reduced at two plants by adjusting the product mix, partially replacing a coal-intensive process with a coal-free process.

CO₂-Ausstoss (Scope 2)
CO₂-Emissions (Scope 2)

CO2 emissions from indirect energy consumption, i.e. emissions not due to Sika’s own primary energy usage, including leased vehicles and business travel, are derived from the reported energy quantities. CO2 emissions caused by purchased electricity are calculated using current emission factors from the Greenhouse Gas protocol (GHG), applying average values for electric power production in each particular country. In 2016, CO2 emissions caused by electricity consumption were calculated at 109,000 tons (previous year: 107,000 tons), i.e. more than twice as high as direct CO2 emissions. Leased vehicles and business travel caused additional CO2 emissions of 20,000 and 13,800 tons, respectively (previous year: 21,000 and 13,800 tons). Sika’s total CO2 emissions run to around 187,000 tons.

Use of Water

In 2016, Sika used approximately 1.3 million cubic meters of water (previous year: 1.7 million cubic meters). With water consumption per ton sold down by around 22% to 0.32 cubic meters (previous year: 0.41 cubic meters), Sika significantly exceeded its target. Sika invested in various water efficiency projects at its plants worldwide.To reduce wastewater discharge at the Alcobendas plant in Spain, the existing wastewater treatment facility was upgraded with ceramic ultra- and nanofiltration membranes.

This reduced tap water consumption by 200 m³ per month (-25%) and achieved savings of € 6,000 per year. The quality of the treated water allows its reuse for cleaning the loading bulk station andin the water treatment plant. Sika Colombia’s large plant at Tocancipá implemented a completely closed water circulation that ranges from rainwater harvesting for production to the reuse of wastewater as sanitary water or, after cleaning, for crop irrigation. In addition, all organic materials are composted and used to fertilize the garden crops.


With an increased production volume, the company generated some 74,000 tons of waste (previous year: 70,000 tons). This corresponds to 17.8 kilograms of waste per ton sold (previous year: 17.3 kilograms per ton sold) or an increase of 2.9%. Various factories producing concrete additives had to dispose of the rinsing water as waste due to a change in the local sewage treatment plants acceptance conditions.

Rinsing water, which contains even the smallest amounts of concrete additives, was thus recently declared as waste. Nevertheless, the total waste volume has decreased by -1.2% since 2013. However, since 2013 the amount of waste has been reduced overall by -1.1%. Material efficiency will continue to be a priority in 2017. A large part of the waste – particularly from polymer and adhesive production – is recycled by external companies. Extensive measures such as the efficient and economical use of raw materials, processoptimizations, improved waste sorting, and the recycling of packaging materials have contributed to global waste efficiency.These measures and the reduction of waste in mortar production through recycling are set to further boost efficiency.