During its association with NINL as Project Management leader, OSIL had established strong business relationship with several Chinese manufacturing & design engineering firms. After its withdrawal from NINL, OSIL together with CSGC/AERIMI of China & Otto India Ltd. Of India, a Thyssen-Krupp company, bid & successfully bagged in a global tendering, NINL's Sinter Plant contract, which has been commissioned since March 2004. The discreet turnkey contract valued at 20 million Dollars (approx.) includes the following services:


- Basic Engineering services of the entire 180 sq.m Sinter Plant for production of 1.7 million tons of BF Sinter.
- Detail Engineering services for critical plant & equipment including support structures.
- Supply of critical FOB & Indigenous equipment
- Supervision of erection & commissioning
- Performance Guarantee & Post Commissioning Services.