Our Story of Growth
Yingdige: From Seedling to Global Partner in Underwater Technology
We are a subsidiary of HaiSi (Langfang) Technology Co., Ltd., focused on underwater technology — deeply engaged in watertight connections and marine exploration. Our goal is to become a reliable partner for global customers. Since our establishment in 2018, we started as an international connector brand agent and quickly transformed into a technology R&D and system integration company. From 2020 to 2023, we expanded our product range, entered global markets, and built a professional R&D, production, and service system — steadily moving toward large-scale global development.
Core Positioning
Focus on underwater technology, deeply engage in watertight connections and marine exploration, and strive to become a reliable partner for global customers.
2018–2019: Seedling Launch · Strategic Transformation
On November 30, 2018, we officially established our company. Initially serving as the global agent for a well-known U.S. connector brand, we accumulated rich industry experience in the underwater field. From late 2018 to early 2019, we completed the transformation from "simple trade" to "technical R&D + system integration" — identifying watertight connectors, underwater cameras, and marine buoys as our core products and initiating independent R&D.
- Launch of our independent product development
- Design of our first equipment
- Introduction of our first injection molding machine
2020–2023: Deeply Focused Growth · Global Market Expansion
During this period, we made steady progress in product research, market expansion, and system improvement:
- Products: Developed 4 core product lines with 60+ specifications, IP68–IP69K waterproof ratings, compatible with TE and Subconn international standards, supporting customization for multiple application scenarios.
- Market: Products exported to 39 countries and regions worldwide, gaining recognition from global customers.
- System: Built a complete R&D, production, and service system — 60% of staff engaged in R&D work.
Key milestones during this period:
- Launch of our first production line
- Recording our team's daily work and growth
- Setting up our first exhibition booth
- Celebrating International Women's Day with our team
- Signing a contract for our own industrial park
- Completion of our own factory building
- Receiving recognition from customers and the industry
- Participating in industry exhibitions again
2024–Present: Iterative Upgrade · Moving Towards High-End
Business Upgrade: We have added new business segments including electronic components and marine exploration equipment manufacturing — achieving a leap from "product application" to "independent manufacturing of core components".
Future Outlook: Centered on technological innovation and quality commitment, we will meet the needs of global customers, cooperate with global partners for mutual benefit, and contribute to the development of the underwater technology industry.
Recent key achievements:
- Establishment of our own systematic service system
- Establishment of Hangzhou Branch and Hong Kong Branch
- Obtained quality system certification and national military standard audit — officially started providing services for the defense science and technology industry
- Carrying out team-building activities to enhance team cohesion
We always look towards the future and welcome global customers to cooperate with us.
The journey of development is long, and we look forward to growing together with you!