Yongin Semiconductor National Industrial Complex Accelerates Infrastructure... National Route 45 Expansion in Full Swing

Yongin City to Widen 12.53km Section to Up to 8 Lanes
Total Project Cost of 891.1 Billion Won... Turnkey Bidding Announced
Mayor Lee Sang-il: "Progress Continues on National Industrial Complex Despite Opposition from Anti-Transmission Line Groups"

The expansion project for National Route 45, which passes through the Yongin Advanced System Semiconductor Cluster National Industrial Complex, has entered the bidding process. The construction of core transportation infrastructure for the semiconductor national industrial complex to be established in the Idong and Namsa-eup areas is now in full swing.

A panoramic view of the Cheoin-gu Idong and Namsa-eup areas where the Yongin Advanced System Semiconductor National Industrial Complex will be established. The road running through the center is National Road 45, where an expansion project is underway. Provided by Yongin City

Yongin City Special Metropolitan City in Gyeonggi Province (Mayor Lee Sang-il) announced on August 12, 2026, that the expansion project for National Route 45 has recently been posted for bid by the Seoul Regional Office of Land Management. The bidding is being conducted under a ‘turnkey’ system, which combines design and construction in a single contract.

The National Route 45 expansion project is a road construction initiative that will widen a 12.53-kilometer section—from the Daechon Intersection in the southeast of Cheoin-gu, passing through the Yongin Advanced System Semiconductor Cluster National Industrial Complex, to the Jangseo Intersection in Yangseong-myeon, Anseong City—from the existing four lanes to up to six to eight lanes. The total project cost amounts to 891.1 billion won, making it a large-scale national project.

National Route 45 is considered a crucial road to handle transportation demand arising from major development projects such as the Yongin Advanced System Semiconductor Cluster National Industrial Complex and the Yongin Idong Public Housing District. The city expects that using a turnkey method—carrying out design and construction simultaneously—will shorten the overall project period.

Since the announcement of the plan to establish the Yongin Advanced System Semiconductor National Industrial Complex on March 15, 2023, Yongin City has repeatedly requested the government to accelerate the expansion of National Route 45. The city maintained that it was necessary to obtain an exemption from the preliminary feasibility study in order to complete expansion work on some sections of the road before the first semiconductor production facility, or ‘fab’, begins operation at the national industrial complex.

Mayor Lee called for an exemption from the preliminary feasibility study and for prompt government support for the National Route 45 expansion project at the fifth cross-government task force meeting on national industrial complexes held on February 28, 2024, and again at the sixth meeting on May 22 of the same year.

On June 26, 2024, the government announced that it would grant an exemption from the preliminary feasibility study and provide state funding for the project. The exemption was officially confirmed on August 22 of the same year.

Mayor Lee stated, “Semiconductors are an industry where speed is critical and time equates to subsidies, so we must accelerate the expansion of infrastructure, including roads.” He emphasized, “We also need to consider the fact that global competitors such as China’s ChangXin Memory Technologies (CXMT) and U.S.-based Micron are rapidly catching up with South Korea’s anchor semiconductor firms.”

Mayor Lee went on to say, “The fact that the National Route 45 expansion project has officially begun demonstrates that progress is being made in establishing the Yongin National Industrial Complex, despite persistent opposition from certain political groups and anti-transmission line organizations.” He added, “The creation of the Yongin Advanced System Semiconductor National Industrial Complex is a national strategic project and a major initiative for the country’s future. We must overcome any obstacles and accelerate its development.”

This content was produced with the assistance of AI translation services.