Located in Yuxi close to three national nature reserves, this iron and steel EPC project covers eight square kilometers and involves constructing four iron and steel production lines simultaneously. The massive, multidiscipline project presented complex terrain, design, construction, and coordination challenges, and high environmental requirements that traditional 2D design and single-discipline 3D design could not accommodate. WISDRI is the general contractor and realized that they needed integrated design, construction, and project management technology.  Leveraging ProjectWise, Bentley’s Open applications, and SYNCHRO, WISDRI established a connected data environment and collaborative design models, performed construction simulation, and created a digital twin, realizing integrated design, refined construction, and green operations. The solution reduced annual carbon emissions by 346,500 tons and resolved 157 design issues, saving CNY 28.6 million in design costs. Visually monitoring construction progress shortened the construction period by 76 days, saving an additional CNY 40 million in costs. The digital twin also supports intelligent operations and maintenance