Headquartered in Madrid, Spain, CEPSA is an integrated energy company active in Exploration and Production, Refining, Natural Gas, Electricity and Chemicals. CEPSA has 21 Mt/year refining capacity integrated with their chemicals business. CEPSA operates on 5 continents and has more than 10 000 employes. CEPSA has been a ZANIN customer since 2020.


Unipetrol is a part of PKN Orlen Group - a major regional refiner in Central and Eastern Europe. Based in Czech Republic, they operate two refineries with a joint capacity of 8.7 MtA, a 544 ktA Olephine plant and 3 polyolefine plants. Unipetrol is an important regional supplier of fuels, lubes and plastics. Unipetrol has been a ZANIN customer since 2020.


BASF-YPC Company Limited is a joint venture between BASF and SINOPEC, and is regarded as a role model of successful Sino-German cooperation. BYC operates according to BASF "Verbund" concept centered around a 740 ktA olephine plant. BYC has been a ZANIN customer since 2020.


NIS Group, headquartered in Novi Sad, Serbia, is one of the largest vertically integrated energy companies in Southeast Europe. NIS is a member of GAZPROM NEFT group. In addition to a large E&P and Natural Gas business NIS also operates a complex 4.8 MtA refinery processing a mix of imported and domestic crude oils and running an FCC, a Reformer, a modern diesel line and a modern Hydrocracker with a Delayed Coker unit being built. NIS has been a ZANIN customer since 2020.