Report Preparation Instructions
The Report mainly discloses information and key performance of Suzhou Dongshan Precision Manufacturing Co., Ltd. and its branches and subsidiaries in fulfilling environmental, social, and governance responsibilities in 2025. Unless otherwise specified for certain information, the policies, statements, and data in this report cover the actual business scope of Suzhou Dongshan Precision Manufacturing Co., Ltd. and its branches and subsidiaries, which are consistent with those in the annual report.
Scope and Boundaries of the Report
For ease of presentation and reading, DSBJ and its branches and subsidiaries are referred to by the abbreviations listed in the table below throughout this Report.
| Company name | Abbreviation |
|---|---|
| Suzhou Dongshan Precision Manufacturing Co., Ltd. | DSBJ, the Company, the Group or we/us |
| Multi-Fineline Electronix, Inc. | MFLEX |
| Multek Group (Hong Kong) Limited | Multek |
| Source Photonics Holdings (Cayman) Limited | Source Photonics |
| MFLEX Suzhou Co., Ltd. | MFLEX Suzhou |
| MFLEX Yancheng Co., Ltd. | MFLEX Yancheng |
| Multek Industries Ltd. | Multek Industries |
| Multek Electronics Ltd. | Multek Electronics |
| Multek Technology (Zhuhai) Co., Ltd. | Multek Technology |
| Suzhou Dongyue New Energy Technology Co., Ltd. | Suzhou Dongyue |
| Multek China Ltd. | Multek China |
| Yancheng Dongshan Precision Manufacturing Co., Ltd. | Yancheng Dongshan |
| Yancheng Mutto Optronics Technology Co., Ltd. | Mutto Optronics |
| Suzhou Rf Top Electronic Communication Co., Ltd. | Rf Top Electronic |
| DSBJ Pte. Ltd. (DSBJ Singapore) | DSG |
| Suzhou JDI Electronics Inc | JDI Electronics |
| Suzhou Chengjia Precision Manufacturing Co., Ltd. | Suzhou Chengjia |
| Dongguan Dongshan Precision Manufacturing Co., Ltd. | Dongguan Dongshan |
| Yancheng Dongchuang Precision Manufacturing Co., Ltd. | Yancheng Dongchuang |
| Suzhou Yongchuang Communication Technology Co., Ltd. | Yongchuang Technology |
| Groupe Mécanique Découpage | GMD Group |
This Report is subject to the following four principles, namely, "Materiality", "Impartiality", "Quantification", and "Consistency".
Principles for Preparation
Materiality. The Company conducts a materiality assessment to identify and evaluate ESG topics that are material to our business, internal and external stakeholders to focus the Report on relevant disclosure. For a more detailed materiality assessment process and results, please refer to the "Sustainable Development Management" section of the Report.
Impartiality. The content of the Report reflects objective facts, providing unbiased disclosure of both positive and negative information related to the Company, and impartially stating the Company's efforts across various aspects of ESG. During the reporting period, we have identified no significant negative events with a material impact that should have been disclosed.
Quantification. In this Report, the Company discloses ESG quantitative performance indicators and establishes quantitative performance targets where applicable. The measurement standards, methods, assumptions, and/or calculation tools for key performance indicators in this Report, as well as the sources of conversion factors used, have been explained in the respective sections, where applicable.
Consistency. This Report maintains consistency in the statistical and disclosure methods of the same indicators across different reporting periods. Any changes in statistical and disclosure methods will be fully explained in the report notes, facilitating meaningful analysis and evaluation by related parties.
Message from the CEO
ESG, far more than a conceptual framework, is a fundamental commitment woven into our strategic decisions and daily practice. We firmly believe that sustainable development is not a solitary journey, but a shared endeavor undertaken alongside our stakeholders to build a more promising future. Looking back at 2025, a year defined by both challenges and growth, thanks to numerous touching moments of resolve, DSBJ has remained steadfast in its mission, moving forward hand-in-hand with our partners to forge a sustainable path.