I. Project Name

Yunfu - Construction Project for a Clock Synchronization System for an Emerging Natural Gas Pipeline Project

II. Duration of Cooperation

2026 year 4  month

III. Company Profile of Guangdong Yunfu Yunxing Natural Gas Co., Ltd.

Guangdong Yunfu Yunxing Natural Gas Co., Ltd. was established in 2022 year 4 Month, registered capital 11188 With a registered capital of ten thousand yuan, it is a state-owned enterprise wholly owned by Guangdong Energy Group Pipeline Co., Ltd. Its core business encompasses licensed activities such as gas operations, oil and natural gas pipeline storage and transportation, and CNG refueling for vehicles, along with ancillary services including oil and natural gas technical services, engineering management services, and the sale of pipeline transportation equipment. The company, as Yunfu… - The investors and developers of emerging natural gas pipeline projects assume a critical responsibility for ensuring regional energy security. Their operations strictly adhere to industry standards, with a commitment to providing safe and reliable energy supplies that support the region’s economic and social development.

IV. Purchased Products

Beijing Zhongxin Chuang DNTS-9 Domestication of models and indigenous innovation NTP Server (including DNTS Manager Centralized monitoring and management software), with the following core configurations:

1. Hardware Platform: Hygon 3250 8 Nuclear CPU (Clock frequency 2.8GHz ), National Silicon (ChangXin) memory ( 16G ), Yangtze Memory Technologies 480G SSD Enterprise-class hard drives (supporting RAID1 Redundancy)
2. Time‑synchronization module: multi‑channel BeiDou‑3 receiver (supports single‑satellite timing), with optional rubidium atomic clock. / Temperature-Compensated Crystal Oscillator Timing Unit
3. Supporting software: Available B/S Architecture for unified network-wide time monitoring, log management, and tiered access control.

V. Customer Requirements

4. Satisfy the requirements of the natural gas pipeline storage and transportation system SCADA The dispatch system, fault recording devices, and security surveillance equipment all require a unified time reference to ensure temporal consistency in their operational sequences.
5. Time synchronization accuracy must meet industrial‑grade standards, support multi‑protocol adaptation, and ensure compatibility across devices from different manufacturers.
6. It features electromagnetic interference resistance and wide-temperature operating capabilities, making it well-suited to the complex industrial environments along pipeline routes.
7. It meets the energy industry’s requirements for independent and controllable operations, with core technologies capable of domestic adaptation.
8. Support 7×24 It operates continuously for hours, featuring comprehensive fault alarms and a redundant design to ensure system stability.

VI. Solution

Beijing Zhongxin Chuang, in response to the unique characteristics of customers’ pipeline transportation scenarios, provides DNTS-9 Type NTP Server Comprehensive Solution:

1. Adopting the BeiDou system / GNSS Dual-mode timing technology, featuring a built-in high-stability crystal oscillator and an all-digital phase-locked loop (PLL) discipline algorithm, ensures precise time synchronization. ≤2.8μs/24 Within an hour, the timekeeping accuracy under a lost‑star condition meets industry standards.
2. Support NTP/SNTP 、 IRIG-B Supports multiple protocol outputs, compatible with customers’ existing systems. SCADA Time synchronization requirements for various terminals, such as systems and monitoring devices;
3. The device features an industrial-grade design, with an operating temperature range that covers… - 40℃~70℃ , through electromagnetic compatibility testing, it can withstand the complex electromagnetic interference environment along the pipeline;
4. Core components are sourced from high‑quality domestic manufacturers, compliant with the XinChuang system requirements, thereby ensuring autonomous and controllable time‑synchronization links.
5. Equipped with dual-power redundancy modules and remote monitoring capabilities, it supports automatic fault alarms and log recording, in conjunction with… 7×24 The on‑call technical support team ensures the system’s continuous and stable operation.

VII. Implementation Outcomes

1. Achieve time synchronization accuracy across all systems and devices in the entire project. ≤1μs , meeting the requirements for fault waveform recording and sequence of events recording ( SOE ) for precise traceability, improving fault‑location efficiency 60%；
2. The equipment operates reliably in compliance with industrial-grade reliability standards, with a mean time between failures ( MTBF ) Reach 90000 During the hour, no system outages occurred due to time synchronization anomalies.
3. Compatible with existing software and hardware architectures, eliminating the need for large-scale overhauls, reducing project implementation costs, and shortening deployment timelines. 30%；
4. Fully complies with the “Petroleum and Natural Gas Industry” In accordance with industry standards such as the “Pipeline Transportation System” and the “Regulations on Security Protection for Power Monitoring Systems,” relevant compliance verification has been conducted.
5. Remote operation and maintenance capabilities reduce on-site maintenance workload and enhance operational efficiency. 40% , reducing long-term operating costs.

VIII. Application Cases

China 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, Sino‑Saudi (Tianjin) Petrochemical, PetroChina Qingyang Petrochemical Company, Jinzhou Petrochemical, Yan’an Petrochemical, Inner Mongolia Yidong Group Dongxing Chemical, Chongqing Huafeng Chemical, Hengli Petrochemical (Dalian) Refining & Chemical, Cangzhou Huahai Refining & Chemical, Daqing Oilfield, Daqing Refining & Chemical, 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 Iron & Steel, Fujian Sangang Mingguang Co., Ltd., Angang Steel Co., Ltd., Fujian Mingang, Chongqing Iron & Steel (Group), Tangshan Iron & Steel Group, Tianjin Jinwanhang Petroleum Materials and 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, Northern Pipeline of China National Pipeline Group, the China–Russia East Pipeline, Lanzhou Oil and Gas Transmission Branch of the Southwest Pipeline, Huadian Environmental Protection Systems Engineering, CGN Topu (Hubei) New Materials, Sinosteel Group Xingtai Machinery, Luxi Chemical, Guangxi Liugang Zhongjin Stainless Steel, 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, CNOOC, Karamay Oil and Gas Storage & Transportation Company in Xinjiang, Jiuquan Iron & Steel Group, Fujian Sangang Group, Liugang Group, Ningbo Aluminum Industry, 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, ENN Gas, Fenxi Mining Group, Hangzhou Hengli Manufacturing, Tangshan Guotang Iron & Steel, Korla. - Shanshan Crude Oil Pipeline Capacity Expansion Project, Xinjiang Yili Company, Hetang Natural Gas CNG Station, Lunan Chemical, Air Liquide (Wuhan) High-Tech Gases, Guangzhou Zhonghuan Natural Gas Development, Daqing Refining & Chemical Company, Xianyang Petrochemical Plant, Tangshan Zhengfeng Iron & Steel, Hubei Sanjiang Aerospace Jianghe Chemical, Wuhai Power Supply Bureau, Shanghai Heavy-Duty Gas Turbine, Tianjin Bohua Yongli Chemical, Shandong Pipeline Network, BASF Petrochemical, Yankuang Lunan Chemical, Sichuan Lutianhua, 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 choice of numerous departments and enterprises reflects a high degree of recognition for Zhongxin Chuang’s products and services. Beijing Zhongxin Chuang will continue to uphold a spirit of professionalism, collaborate sincerely with partners across all sectors, and jointly achieve win‑win outcomes that benefit both businesses and society.