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About accessa

The Association for the Catalytic Control of Emissions from Stationary Sources to air - "accessa" - was founded by member companies Clariant, Haldor Topsoe and Johnson Matthey. All are technology leaders in the field of emissions control. The objective of accessa is to promote the technological and economic viability of using catalytic emission control technologies to control emissions to air from stationary sources. 

Members include global companies recognized as technology and market leaders in the sector: