Our Story

ATOP is a leading manufacturer of optical transceivers, a critical equipment needed for optical communications. With in-house R&D expertise and manufacturing facilities, we design and produce a variety of optical solutions for wireless communications, transmission networking, data center networking, and cloud computing.

ATOP was first established in in Mianyang, Sichuan province of China in 2010. Over the years, ATOP has grown from a local manufacturer serving Chinese market only to a well-known maker of optical solutions with growing global presence. Today we count many global telecom carriers, telecom equipment vendors, data center operators, and cloud service providers as our customer.

In October of 2019, ATOP was acquired by SDGI (Shenzhen Development Group Information Co. Ltd), a public-listed, leading manufacturer of optical network equipment and communication systems with presence in more than 40 countries and regions in the world. We are super excited of embarking on this new journey together with SDGI to better serve our customers around the world with a much more extensive range of optical solutions and fiber products; and to provide better customer support and more service coverage.

Our Quality Commitment

ATOP has a long and significant experience in production of optical modules for telecommunications network with a reputation for product quality and consistency. ATOP is a certified supplier for many tier 1 global telecom equipment manufacturers. ATOP products have passed the most stringent product tests for EMI, ESD, high/low temp performance, and widely adopted by leading telecom operators around the world. In fact, we consider our commitment to product quality and reliability as one of the cornerstones of our business success.

For quality control and going quality improvement, ATOP has implemented total quality management (TQM) with end-to-end quality management process, complete system certification and product certification. ATOP quality and product certification include, ISO9001:2015, ISO14001:2015, ESD-S20.20-2014, TÜV Rheinland, CB, UL, FDA, FCC, CE, Bay Area Compliance Laboratories (BACL), CNAS, and TCL.

Our Global Network

ATOP is headquartered in the city of Mianyang, China. Sitting on a 46-acre of land, Our HQ also serves as the key hub for research and manufacturing. We have also established a dedicated R&D centre in Chengdu, China.

While having key research and manufacturing facilities in China and Vietnam, ATOP rely on a global network of ATOP suppliers and partners to design, manufacture, and distribute products as well as ATOP regional and country offices to serve local customers and partners. Today we have established sales offices and service centers across Great China, Asia Pacific, EMEA, and North America.

Our Global Network

ATOP is headquartered in the city of Mianyang, China. Sitting on a 46-acre of land, Our HQ also serves as the key hub for research and manufacturing. We have also established a dedicated R&D center in Chengdu, China.

While having key research and manufacturing facilities in China and Vietnam, ATOP rely on a global network of ATOP suppliers and partners to design, manufacture, and distribute products as well as ATOP regional and country offices to serve local customers and partners. Today we have established sales offices and service centers across Great China, Asia Pacific, EMEA, and North America.

For the Great China region, all sales and customer services are handled by our office in Shenzhen, China.

For the Asia Pacific region including Australia and New Zealand, all sales and customer services are handled by our office in Melbourne, Australia.

In EMEA, customers and partners cross the continents are served by ATOP offices in Denmark and Italy.

In USA, we run our North American operations including sales, distribution and customer support from Placentia, California.

Declaration of Conflict-Free Sourcing

ATOP CORPORATION herein declare the metal Conflict-Free on products supplied:

ATOP CORPORATION has conducted and will continue to conduct due diligence within our supply chain to assure the metals used including gold (Au), tantalum (Ta), tungsten (W), cobalt (Co) and tin (Sn) are “DRC Conflict-Free”, meaning the metals are not derived from or sourced from mines in conflict areas of the Democratic Republic of Congo (DRC), or illegally taxed on trade routes, either of which are controlled by non-governmental military groups, or unlawful military factions. Trade routes confirmed to be “Conflict Free” include direct exports from the DRC, as well as exports through Rwanda, Uganda, Burundi, Tanzania and Kenya (countries of whom the U.N. Security Council note are global export routes for DRC-mined minerals).

We confirm that metals used in Products sold are “DRC Conflict-Free”.

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