Yijia 3D Additive Technology faces regulatory sanctions after IPO withdrawal; CITIC Securities sponsors warned

Shanghai's stock exchange issued dual regulatory warnings on June 29, 2026, against Yijia 3D Additive Technology (易加增材) and its IPO sponsors at CITIC Securities, following the company's withdrawal of its STAR Market listing application. The exchange found that Yijia failed to maintain accurate R&D internal controls, including post-hoc time-sheet compilation, inaccurate R&D expense allocation, and insufficient documentation of material usage and equipment depreciation. CITIC Securities sponsors Dong Chao and Yu Qidong were issued supervisory warnings for failing to adequately verify the company's R&D internal controls, expense classification, and shareholder relationships - specifically regarding a 1.14% stake held by Yuanzhi Duoying, whose investor Hangzhou Lansheng exhibited overlapping personnel, email domains, and phone numbers with Yijia's controlling shareholder Yongsheng Holdings, along with a bridge-loan arrangement for the stake purchase. Yijia develops metal LPBF and polymer SLS systems targeting aerospace, industrial manufacturing, research, and consumer electronics end markets.

This case illustrates a recurring pattern in the AM industry: Chinese metal AM OEMs that gained rapid scale during the 2021-2025 domestic market expansion now face heightened scrutiny when attempting to transition from private growth to public-market validation. Yijia, which positioned itself as a "specialized and new" (专精特新) enterprise with participation in national R&D programs, had its "tech-innovation credentials" directly challenged. The event matters because it signals that the STAR Market's enforcement of R&D governance standards - particularly around time tracking for hybrid R&D/production personnel, material traceability, and cost allocation - is intensifying even after an IPO is withdrawn. This creates a qualification burden for Chinese AM OEMs that have historically prioritized production scaling over rigorous accounting discipline. The fact that the exchange also targeted the sponsor's shareholder-relationship checks, including potential undisclosed related-party arrangements, shows a broader push against governance opacity in the supply chain.

For the broader AM industry, this is a concrete data point that Chinese regulator scrutiny of manufacturing IPOs is tightening precisely on the R&D governance dimensions that matter most for credible technology claims. Yijia's core challenge now is not litigation but credibility restoration - the company needs to demonstrate that its engineering claims are backed by auditable processes before it can re-engage capital markets. The practical lesson for other Chinese AM hardware companies eyeing IPOs: R&D process documentation and expense allocation must be investor-grade from year one, not constructed retrospectively. For CITIC Securities, this is the latest in a string of supervisory actions in 2025-2026 that collectively suggest the firm's deal volume is outpacing its quality-control capacity, a math that will eventually pressure its market share if left uncorrected.