Saudi Water Partnership Company (SWPC) has pre-qualified 22 companies for the development of Riyadh East and Khamis Mushait Independent Sewage Treatment Plant projects in Saudi Arabia. Riyadh East ISWT will have a total treatment capacity of 100,000 m³/day, while Khamis Mushait ISTP's treatment capacity will be 50,000 m³/day. 

The list of pre-qualified companies is as follows:

1. Abdul Aziz Al Ajlan Sons Co. for Commercial & Real Estate Investment – Ajlan & Bros
2. Acciona Agua S.A.
3. Alfanar Company
4. Al Bawani Water & Power (AWP)
5. Alkhorayef Water and Power Technologies Company
6. China Gezhouba Group Co. Ltd (CGGC) – Saudi Arabia Branch
7. Civil Works Company Ltd.
8. Cobra Instalaciones y Servicios, S.A.
9. GS Inima Environment S.A.
10. International Water Distribution Co. Ltd. (TAWZEA)
11. Jinluo Water Co. Ltd – Dubai Branch
12. Lamar Saudi United Holding
13. Metito Utilities Limited
14. Mowah Company (CJSC)
15. Miahona Company
16. Rawafid Industrial Company
17. S.A. de Obras y Servicios, COPASA Group
18. SAUR SAS
19. Suez International
20. Utico FZC
21. Vishvaraj Environment Private Limited
22. China Everbright Water Investment Limited

The interested companies can submit the qualifications until January 12, 2022.