I. Project Name

China National Chemical Corporation Quanzhou Petrochemical Co., Ltd. Network Time Synchronization System Construction Project

II. Duration of Cooperation

2025 year

III. Company Profile of Sinochem Quanzhou Petrochemical Co., Ltd.

Sinochem Quanzhou Petrochemical Co., Ltd. was established in 2006 year 9 The company, located in the Quanhui Petrochemical Industrial Park in Huian County, Quanzhou City, Fujian Province, is affiliated with Sinochem Energy Co., Ltd., a subsidiary of Sinochem Holdings Corporation Limited. It serves as a key strategic pillar for Sinochem Group’s energy business as it extends downstream along the industrial value chain. As a large-scale refining and petrochemical enterprise integrating petroleum refining, storage, transportation, and sales, the company has been consistently listed for many years. “ Fujian enterprises 100 Strong list ” , and was awarded “ Advanced Unit in Environmental Protection for the National Petroleum and Chemical Industry during the 12th Five-Year Plan Period ” . As of 2025 Year, the company possesses 1500 Ten thousand tons / Annual crude oil processing capacity, 100 Ten thousand tons / Annual ethylene production capacity and 3570 Ten thousand tons / With a total terminal throughput capacity of X million TEUs per year, the company’s operations span the production, sales, warehousing, and import‑export of petroleum and chemical products. Its products are exported to Southeast Asia, Europe, Australia, North America, and other regions, giving it significant influence within the industry.

IV. Purchased Products

The network time server developed by Beijing Zhongxinchuang Technology Co., Ltd. DNTS-9 It is an intelligent, high-precision device. NTP Network time server. DNTS-9 Network time servers from BeiDou, GLONASS 、 Galileo Obtain standard time information from the system, and via NTP/SNTP or other network protocols, providing standard time services across the network. Devices that require time synchronization—such as personal computers, servers, and controllers—can synchronize with international standard time.

Use simultaneously GNSS Priority can be defined for satellite receivers, and the system supports a single receiver. / Dual receivers, single antenna / Dual-antenna configuration; each receiver can be set to time‑transfer mode individually or in combination. When both receivers and other available time sources are out of signal range, DNTS-9 It employs a built-in temperature-compensated crystal oscillator for timekeeping and continuously provides time services to external users. Featuring a self-developed all-digital phase-locked loop and a proprietary frequency‑control algorithm, it delivers superior timekeeping accuracy and more precise time dissemination.

DNTS-9 In addition to serving as a primary network time‑synchronization device, it can also function as a secondary time server, enabling more effective time synchronization in large‑scale network environments. It can support distributed networks, computer security systems, file management systems, e‑commerce systems, and online… B2B The system, along with the storage and maintenance of cloud databases, requires a highly precise standard time signal and has been successfully deployed across government, finance, mobile telecommunications, public security, petroleum, electric power, transportation, industrial sectors, and national defense.

DNTS-9 Network time servers are extremely easy to install and use: simply connect the satellite receiving antenna and plug the network port into a network switch, and you can achieve time synchronization across all devices on the network.

V. Customer Requirements

1. It is necessary to establish a high-precision time synchronization system to provide standardized time services for the company’s core business systems, including its distributed production network, security systems, file management system, and cloud databases, thereby ensuring the consistency of operation timestamps across all processes.
2. The production environment encompasses a variety of devices and secondary servers, requiring support for tens of thousands of clients to connect concurrently and meet the time‑synchronization needs of large‑scale networks.
3. As critical infrastructure in the energy sector, it must ensure high security, support identity authentication, access control, and operational auditing, and safeguard against unauthorized access and configuration tampering.
4. The equipment must be designed to operate in industrial‑grade environments, maintain stable time synchronization under complex operating conditions, and provide continuous timing accuracy even in the absence of satellite signals, thereby ensuring uninterrupted production.
5. Operations and maintenance management must be efficient and convenient, supporting remote monitoring, fault alerts, log aggregation and export, as well as tiered access control, to reduce operational costs.
6. Compliant with domestic information technology innovation requirements, both core hardware and software are sourced from Chinese brands, ensuring supply-chain security and independent, controllable operations.

VI. Solution

Beijing Zhongxin Chuang Technology, in response to the industry-specific characteristics and core requirements of Sinochem Quanzhou Petrochemical, provides DNTS-9 Domestication of Information Technology Innovation NTP The comprehensive server solution, including core configuration and implementation, is as follows:

1. Core hardware configuration : Adopting Haiguang 3250 8 Nuclear CPU , National Silicon Industry (ChangXin) memory and Yangtze Memory enterprise‑grade SSD , equipped with Huada Beidou / Shanghai Sinan’s domestically produced satellite receiver, paired with aerospace‑grade atomic clocks, fully meets the requirements of the information technology innovation (ITI) initiative. It supports dual‑receiver and dual‑antenna configurations, along with priority‑based settings, thereby enhancing signal reception reliability.
2. High-Precision Timing Assurance : Obtain standard time via the BeiDou Navigation Satellite System, NTP Time synchronization accuracy reaches 5us , internal synchronization accuracy 20ns，24 Hourly timekeeping accuracy ≤5ns , stability ≤10ns , ensuring highly consistent timing across all equipment throughout the plant.
3. Continuous On-Time Design : When satellite signal is lost, the system automatically switches to timekeeping via the built-in atomic clock or a temperature-compensated crystal oscillator (the rubidium atomic clock offers superior timekeeping performance compared to… 500 ns/day , a temperature-compensated crystal oscillator is superior to 8.6us/day ), thereby providing uninterrupted time‑keeping services.
4. Security Protection System : Support SSH/web Endpoint password complexity validation, validity period management, and login timeout settings; equipped with access control. / Blacklist and whitelist mechanism, syslog Remote auditing capabilities, with core firmware protected by dual encryption and four‑level digital signatures, help mitigate security risks.
5. Efficient Operations and Maintenance Management : Deployment DNTS Manager Centralized management software, supports SSH 、 Telnet 、 Web 、 SNMP and various management modes, enabling simultaneous monitoring of thousands of servers and tens of thousands of clients; it also features one-click diagnostics and periodic log summarization and export ( Excel format), tiered user management (regular account) / Management Account / Super Administrator) function; through syslog 、 SNMP 、 email and send satellites, antennas, and more through multiple channels, NTP Service and client-side exception alerts ensure efficient operations and maintenance.
6. Flexible deployment and adaptation : The equipment adopts 2U Chassis design, supports 1~14 road 10/100/1000M Ethernet port or 1G/10GbE SFP Port options available, single network port. NTP The request volume reaches 90000 Next / Seconds, compatible with large-scale network environments; easy to install—simply connect the satellite antenna to the network switch to activate, supporting Tier 1. / The secondary server deployment model aligns with a distributed production architecture.

VII. Implementation Outcomes

1. Time synchronization accuracy meets the standard: Thousands of production devices, servers, and control systems across the entire plant have achieved unified timekeeping, with synchronization error kept within 5us Within this range, it meets the stringent time‑accuracy requirements of scenarios such as chemical production, data storage, and security auditing.
2. System stability and reliability: The equipment is in… - 10°C~+55°C Stable operation in industrial environments, MTBF reach 90000 During the hour when satellite signals were interrupted, the built-in timing module ensured continuous timekeeping, and no production disruptions occurred due to time-synchronization issues.
3. Security and Compliance: Fully compliant with information security standards for the energy industry, the system implements end-to-end security management through tiered access control, fine-grained access policies, and operational audit capabilities, while also passing relevant security compliance assessments.
4. Significant improvement in operations efficiency: With features such as automatic client identification, log aggregation and export, and intelligent alerting, manual configuration and troubleshooting efforts are reduced, leading to faster operational response times. 60% As a result, fault‑location time has been reduced to the minute level.
5. The indigenous innovation (XinChuang) requirements are fully met: both core hardware and software are sourced from domestic brands, and the system has passed rigorous testing by authoritative institutions such as the International Time Service Center of the Chinese Academy of Sciences and the TÜV Rheinland Laboratory, aligning with the national XinChuang strategic framework and ensuring independent, controllable system operation.
6. 

VIII. Application Cases

Beijing Zhongxin Chuang DNTS-9 The product series has been widely deployed across multiple sectors, including energy, steel, and chemicals. Key partner clients include the National Pipeline Group, Sinopec, PetroChina, CNOOC, Hengli Group, China Shenhua, Air Liquide, Zhongyuan Petrochemical, Yangzi Petrochemical, Changqing Petrochemical, Daqing Refining & Chemical, Shanghai Petrochemical, Tianjin Petrochemical, Yanshan Petrochemical, Zhanjiang Petrochemical, Langfang Petrochemical, Gansu Petrochemical, Anqing Petrochemical, Daqing Petrochemical, Zhongsha (Tianjin) Petrochemical, PetroChina Qingyang Petrochemical Company, Jinzhou Petrochemical, Yan’an Petrochemical, Inner Mongolia Yidong Group’s Dongxing Chemical, Chongqing Huafeng Chemical, Hengli Petrochemical (Dalian) Refining & Chemical, Cangzhou Huahai Refining & Chemical, Daqing Oilfield, Qinshan Nuclear Power Plant, Jingxi Gas, Kunlun Gas, ENN Natural Gas Co., Ltd., Hope Gas, Shenzhen Gas, Zhongyuan Ethylene, Jiaxing Iwatani Gas, PetroChina Yellow Sea Storage Base, Beijing Shougang Co., Ltd., Hebei Shougang Qian’an Steel, Fujian Sangang Mingguang Co., Ltd., Angang Steel Co., Ltd., Fujian Minggang, Chongqing Iron & Steel (Group), Tangshan Iron & Steel Group, Tianjin Jinwanhang Petroleum Materials & Equipment, Tarim Oilfield, China Bluestar North Chemical Machinery, North China Petroleum Communications, Wuhan Iron & Steel Group, Shaanxi Yulin Energy Group, China Huaneng Group, CGN Group, Yankuang Group, the Northern Pipeline Division of the National Pipeline Group, the China–Russia East Pipeline, the Lanzhou Oil & Gas Transmission Branch of the Southwest Pipeline, Huadian Environmental Protection Systems Engineering, CGN Topu (Hubei) New Materials, Sinosteel Group’s Xingtai Machinery, Luxi Chemical, Guangxi Liugang Zhongjin Stainless Steel, and Korla. - Shanshan Crude Oil Pipeline Capacity Expansion Project, Huade Petrochemical in Daya Bay, Huizhou City, Xinjiang Tianli High‑Tech Petrochemical Co., Ltd., Guangzhou Zhonghuan Natural Gas Development, Lu Tianhua, Ningbo Fude Energy, Lianhong Chemical, Qinghai Oilfield, Xinjiang Karamay Oil and Gas Storage & Transportation Company, Jiuquan Iron & Steel Group, Fujian Sangang Group, Liugang Group, Ningbo Aluminum, Hesheng Silicon Industry, Dalian Liquefied Natural Gas of the National Pipeline Network, Shaanxi Changqing Energy & Chemical, Shanxi Northern Xing’an Chemical Industry, Qingdao Siyuan Chemical, Taiyuan Heavy Industry New Energy Equipment, Guizhou Chitianhua Group, Binsteel Iron & Steel Group, Maoming Petrochemical Liquefied Air Gases, Heilongjiang Haohua Chemical, Fenxi Mining Group, Hangzhou Hengli Manufacturing, Tangshan Guotang Iron & Steel, Xinjiang Yili Company, Hetang Natural Gas CNG Station, Lunan Chemical, Air Liquide (Wuhan) High‑Tech Gases, Daqing Refining & Chemical Company, Xianyang Petrochemical Plant, Tangshan Zhengfeng Iron & Steel, Hubei Sanjiang Aerospace Jianghe Chemical, Wuhai Power Supply Bureau, Shanghai Heavy‑Duty Gas Turbines, Tianjin Bohua Yongli Chemical, Shandong Pipeline Network, BASF Petrochemical, Yankuang Lunan Chemical, Sichuan Lu Tianhua, Sinochem Nantong Petrochemical Storage & Transportation, Sinopec Pipeline Storage & Transportation Company, Suizhong County, Liaoning Province. 36-1 Factory natural gas processing plant, Chongqing Haizhuang Wind Power Engineering Technology, Huaibei Mining, Shuangliu Coal Mine, Jiangxi Copper Group Guixi Smelter, Jingtang Air Separation, National Pipeline Group Shandong Pipeline, Shandong Coal Mine, Sinopec Yizheng Chemical Fiber, Xinjiang Xinye Energy & Chemical, China Resources Gas, Sinosteel Group Xingtai Machinery Roll, Qinrui Petrochemical, Tote Mechanical & Electrical, Inner Mongolia Smart Operation & Maintenance New Energy, Hengyi Petrochemical, Binzhou CNOOC Refining & Chemical, Zhongtai Chemical, and others.

The selection of numerous industry-leading enterprises and key projects underscores the high level of recognition for Beijing Zhongxin Chuang’s product performance and service quality. The company will continue to deepen its expertise in the time‑frequency field, collaborating sincerely with partners across all sectors. Leveraging its independently developed, domestically produced time‑synchronization solutions, it will help enterprises achieve secure, efficient operations, fostering mutually beneficial progress for both businesses and society.