Tus-Design Group Co., Ltd.
Tus-Design Group Co., Ltd. (Chinese legal name: 启迪设计集团股份有限公司), formerly Suzhou Institute of Architectural Design Co., Ltd., is a joint-stock company based in Suzhou Industrial Park, Jiangsu Province, China, and listed on the Shenzhen Stock Exchange ChiNext board (ticker 300500) since 4 February 2016. Its predecessor design institute was founded in 1953, and the company adopted its current name in March 2017.
Tus-Design Group provides full-process design and consulting services covering project planning, engineering design, engineering consultancy and testing across public buildings, residential, industrial and research facilities, landscape and interior design. It also carries out engineering general contracting, urban-renewal planning and operation, digital-technology services (including AI-assisted design tools and a self-developed building operations platform), and dual-carbon/new-energy work such as distributed rooftop solar design. The company has participated in the design of all nine Suzhou rail-transit lines since construction began in 2007, and has delivered projects including Suzhou Center and multiple stadium and cultural-venue renovations. In 2025 it also led a consortium awarded a large data-centre construction and operation contract in Henan province, its first major project of that type outside Jiangsu.
According to its FY2025 annual report, filed with the Shenzhen Stock Exchange via cninfo.com.cn on 29 April 2026, Tus-Design Group reported consolidated revenue of approximately CNY 1,000.77 million for 2025, down 15.53% year on year, a net loss attributable to shareholders of approximately CNY 92.64 million, and total assets of approximately CNY 2,548.12 million as of 31 December 2025. The same filing discloses that the company restated its 2020-2024 financial statements following a Ministry of Finance accounting-information-quality inspection, and that the China Securities Regulatory Commission opened a formal investigation into the company on 31 December 2025 for suspected information-disclosure violations, which remained unresolved as of the report date. An active registry or listing status does not by itself indicate that the company is currently trading profitably or free of regulatory issues.
- Company fundamentals
- Corporate linkage & group structures
- Digitized company financials
- Firmographics — websites, social profiles, revenue and employee estimates
Shareholders
Shareholders of Tus-Design Group Co., Ltd.
As of 31 December 2025, per the FY2025 annual report filed with the Shenzhen Stock Exchange via cninfo.com.cn on 29 April 2026, Tus-Design Group Co., Ltd. had 15,064 registered holders of ordinary shares. The largest disclosed shareholder is Suzhou Saide Investment Management Co., Ltd. (苏州赛德投资管理股份有限公司), a domestic non-state-owned corporate holder, with 44.54% of share capital (77,480,000 shares). Other top-10 disclosed holders, each below 2.5%, include Dai Yaping (2.45%), Zha Jinrong (2.04%, also a company director, with 2,667,600 of his shares subject to lock-up restrictions), Tang Shaohua (1.25%), Li Haijian (1.13%, whose entire 1,963,115-share stake is currently frozen pending litigation), Goldman Sachs International’s proprietary account (0.83%), Morgan Stanley & Co. International plc (0.69%), Wang Hui (0.68%), a CITIC Securities Asset Management (Hong Kong) client account (0.68%) and Chen Yang (0.64%).
The filing states that Dai Yaping, Zha Jinrong and five other individuals were previously bound by an acting-in-concert agreement that lapsed on 3 February 2019 and was not renewed. Suzhou Saide Investment Management Co., Ltd. is itself held 10.78% by Dai Yaping and 9.00% by Zha Jinrong, per the same filing’s equity-control chart; the remainder of that holding company’s ownership is not disclosed in this report.
Ultimate beneficial ownership
No single verified ultimate beneficial owner can be established. The company’s own FY2025 annual report explicitly states that it currently has no actual controller (实际控制人), following the 2019 lapse of the shareholders’ concert-party agreement. Suzhou Saide Investment Management Co., Ltd. is the largest single shareholder at 44.54%, but no individual is shown to hold a majority stake in that intermediate holding company either.
Data availability
Major shareholders only: mainland Chinese disclosure rules for Shenzhen-listed companies require publication of the top-10 shareholders and any holders above reporting thresholds, not the complete register of the company’s 15,064 shareholders. A historical TusHoldings press item from around the company’s 2017 renaming described it as a TusHoldings-linked listed company, but no TusHoldings- or Tsinghua-linked entity appears among the top-10 holders in the current annual report, so this claimed link is not corroborated by the latest official filing and is treated here as unverified.
Sources
- Tus-Design Group Co., Ltd. FY2025 Annual Report Summary, announcement 2026-011, filed via cninfo.com.cn, publication date 2026-04-29, retrieved 2026-09-11 (http://static.cninfo.com.cn/finalpage/2026-04-29/1225228838.PDF)
Officers
8
Directors and officers of Tus-Design Group Co., Ltd.
On-file registry data lists five active officers out of a stated eight total records (the source feed appears to be paginated/incomplete; three additional office-holder records were not retrievable). The five confirmed active roles are: Zha Jinrong (born 1967) as Vice Chairman and General Manager, who the company’s FY2025 annual report separately identifies as its statutory legal representative and as a top-10 shareholder holding 2.04% of shares; Bin Zhang as General Manager and Director; Shuang Cai as Deputy General Manager and Non-Independent Director; Liang Hua as Deputy General Manager and Non-Independent Director; and Peng Su as Deputy General Manager and Director. No resignation dates are recorded for any of the five. None of these individuals has a disclosed nationality in the reviewed sources; the country value recorded against each in the on-file data reflects a correspondence-address country field, not a nationality declaration, and has not been used to infer nationality.
Recent officer changes
The FY2025 annual report discloses that a then-serving director of the parent company, Li Haijian, who was also the former chairman of wholly-owned subsidiary Shenzhen Jialida Energy-Saving Technology Co., Ltd., was found in an internal review to have misappropriated funds from that subsidiary between 2019 and 2020. On 5 January 2026, Jialida filed suit against Li Haijian and a second individual, Zhang Cui, seeking recovery of principal, management-fee losses and interest totalling approximately CNY 31.34 million; as of the report date the case had not yet gone to trial. Li Haijian’s own 1.13% shareholding in the parent company is recorded as frozen.
Data availability
Partial: mainland Chinese company filings disclose directors, supervisors and senior management with role and, where restricted, shareholding data, but nationality and complete appointment/resignation history are not part of standard public disclosure and were not found for any individual named here. The underlying registry-sourced officer list also appears incomplete (5 of a stated 8 records retrieved).
Sources
- Tus-Design Group Co., Ltd. FY2025 Annual Report Summary, announcement 2026-011, filed via cninfo.com.cn, publication date 2026-04-29, retrieved 2026-09-11 (http://static.cninfo.com.cn/finalpage/2026-04-29/1225228838.PDF)
- On-file company officer registry extract (SAMR/GSXT-sourced data provider), last synced 2026-08-11
Registry feed — rows exactly as filed with SAMR — public search via GSXT (National Enterprise Credit Information Publicity System), including entries the profile above does not cover.
Group Structure
Group structure of Tus-Design Group Co., Ltd.
Tus-Design Group Co., Ltd. is a Shenzhen Stock Exchange-listed parent company. Its FY2025 annual report verifies one wholly-owned subsidiary, Shenzhen Jialida Energy-Saving Technology Co., Ltd. (深圳嘉力达节能科技有限公司), and one jointly-established affiliate, Time-Ripple Business Management (Suzhou) Co., Ltd. (时空涟漪商业管理（苏州）有限公司), set up during 2025 with Lao Einstein Urban Renewal (Shenzhen) Co., Ltd. (老爱因思坦城市更新（深圳）有限公司); the filing does not disclose Tus-Design’s ownership percentage in this joint venture. No verified immediate or ultimate parent company can be identified: the company’s own filing states it currently has no actual controller, and its largest shareholder, Suzhou Saide Investment Management Co., Ltd. (44.54%), is not described in the filing as a parent company. Separately, on-file registry data records no parent, subsidiary or ownership linkage for this company; that appears to be a gap in that particular data source rather than evidence of a fully independent structure, since the company’s own annual report confirms at least one wholly-owned subsidiary.
Verified corporate relationships
| Entity | Country | Registration number | Relationship | Ownership | Status | Information date |
|---|---|---|---|---|---|---|
| Shenzhen Jialida Energy-Saving Technology Co., Ltd. | CN | Not disclosed in this filing | Direct subsidiary | Wholly-owned (per filing wording) | Active | FY2025 annual report (filed 2026-04-29) |
| Time-Ripple Business Management (Suzhou) Co., Ltd. | CN | Not disclosed in this filing | Affiliate (jointly established, 2025) | Ownership percentage not disclosed | Active | FY2025 annual report (filed 2026-04-29) |
Recent structural changes
Time-Ripple Business Management (Suzhou) Co., Ltd. was newly established during the 2025 reporting period as a joint venture between Tus-Design and Lao Einstein Urban Renewal (Shenzhen) Co., Ltd., to expand the company’s post-project operational services for urban-renewal work.
Data availability
Partial: the FY2025 annual report confirms one wholly-owned subsidiary and one new joint-venture affiliate, but a complete subsidiary register, registration numbers, and the joint venture’s ownership split are not disclosed in the report reviewed. The company states it has no actual controller, so no parent-company relationship can be verified.
Sources
- Tus-Design Group Co., Ltd. FY2025 Annual Report Summary, announcement 2026-011, filed via cninfo.com.cn, publication date 2026-04-29, retrieved 2026-09-11 (http://static.cninfo.com.cn/finalpage/2026-04-29/1225228838.PDF)
- On-file company group/linkage registry extract (SAMR/GSXT-sourced data provider), last synced 2026-08-11
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring.
Frequently Asked Questions
What is Tus-Design Group Co., Ltd.?
Tus-Design Group Co., Ltd. (启迪设计集团股份有限公司) is a Chinese joint-stock design, engineering and consulting company based in Suzhou Industrial Park, Jiangsu Province, listed on the Shenzhen Stock Exchange ChiNext board under ticker 300500.
Where is Tus-Design Group based?
The company is based in Suzhou Industrial Park, Jiangsu Province, China, per its FY2025 annual report office address.
Is Tus-Design Group a publicly listed company?
Yes. It has been listed on the Shenzhen Stock Exchange ChiNext board under ticker 300500 since 4 February 2016.
What was Tus-Design Group previously called?
The company was formerly named Suzhou Institute of Architectural Design Co., Ltd. and adopted the name Tus-Design Group Co., Ltd. in March 2017.
What does Tus-Design Group do?
It provides full-process design and consulting services (planning, engineering design, engineering consultancy and testing) across public, residential, industrial and research buildings, plus engineering general contracting, urban renewal, digital-technology services and dual-carbon/new-energy work such as distributed solar design.
Who is the largest shareholder of Tus-Design Group?
Suzhou Saide Investment Management Co., Ltd. holds 44.54% of shares as of 31 December 2025, per the company's FY2025 annual report.
Does Tus-Design Group have a controlling shareholder or actual controller?
No. The company states in its FY2025 annual report that it currently has no actual controller, after a shareholders' acting-in-concert agreement lapsed in February 2019 and was not renewed.
Who is the legal representative of Tus-Design Group?
Zha Jinrong is identified as the company's Vice Chairman, General Manager and a top-10 shareholder (2.04%) in its FY2025 annual report.
What was Tus-Design Group's revenue in 2025?
Consolidated revenue was approximately CNY 1,000.77 million for 2025, down 15.53% year on year, with a net loss attributable to shareholders of approximately CNY 92.64 million, per the FY2025 annual report.
Is Tus-Design Group under any regulatory investigation?
Yes. The China Securities Regulatory Commission opened a formal investigation into the company on 31 December 2025 for suspected information-disclosure violations, which remained unresolved as of the report filing date.
Does Tus-Design Group have any subsidiaries?
Its FY2025 annual report confirms one wholly-owned subsidiary, Shenzhen Jialida Energy-Saving Technology Co., Ltd., and a jointly-established affiliate, Time-Ripple Business Management (Suzhou) Co., Ltd., set up in 2025.
Is Tus-Design Group linked to Tsinghua University or TusHoldings?
The company's "Tus" name has historical ties to a 2017 press report describing it as a TusHoldings-affiliated listed company, but no TusHoldings- or Tsinghua-linked entity appears among its top-10 shareholders in the current FY2025 annual report, so this link is not corroborated by the latest official filing.
What major projects has Tus-Design Group worked on?
The company has participated in the design of all nine Suzhou rail-transit lines since 2007, delivered the Suzhou Center mixed-use development, and in 2025 led a consortium awarded a large data-centre construction contract in Henan province.
Has Tus-Design Group restated its financial statements?
Yes. Following a Ministry of Finance accounting-information-quality inspection, the company restated its 2020-2024 consolidated and standalone financial statements, as disclosed in its FY2025 annual report.