I. Why Do Generator Maintenance Costs Remain High?
For energy enterprises with cross-border operations, the maintenance costs of generator sets and marine engines consistently represent a significant portion of operational expenditures. The high costs associated with traditional cross-border maintenance models primarily stem from three factors:
First, capital immobilization. When equipment requires overseas maintenance, enterprises must pay customs a tariff deposit equivalent to a certain percentage of the equipment's value. For an industrial generator set, this deposit can amount to tens or even hundreds of thousands of US dollars, and it cannot be refunded until the equipment is repaired and re-exported, often resulting in capital occupation periods lasting several months.
Second, logistics-related damage. Power generation equipment predominantly consists of large, heavy machinery. International transportation is not only expensive but also carries risks of secondary damage from multiple loading and unloading operations and long-distance transport. By the time equipment arrives at the repair facility, new damage may have already occurred.
Third, supply chain fragmentation. Parts procurement, technical diagnosis, and repair execution are often handled by different entities in different countries, resulting in high communication costs and coordination difficulties. Delays in any single link can extend equipment downtime.
These pain points have long troubled international energy enterprises, and the Hainan Free Trade Port's bonded maintenance model is precisely the innovative solution designed to address these issues.
II. How Does Bonded Maintenance in Hainan, China Reduce Generator Maintenance Costs?
1. Tariff Exemption: Zero-Tariff Import of Maintenance Parts
Under the Hainan Free Trade Port's "zero-tariff" policy, enterprises can import generator components, tools, and equipment needed for maintenance with exemption from import duties. This policy directly reduces material costs for maintenance operations, enabling international clients to access high-quality repair services at lower prices.
2. Deposit Exemption: Relieving Capital Occupation Pressure
In the traditional model, overseas power generation equipment entering China for maintenance required a tariff deposit equivalent to a certain percentage of the equipment's value, resulting in significant capital occupation over extended periods. Under the bonded maintenance model, equipment enters Hainan under bonded status for inspection and repair before being re-exported, without requiring tariff deposits. This directly releases immobilized capital and optimizes cash flow for enterprises.
3. Tax Incentive: 15% Corporate Income Tax
Enterprises registered in the Hainan Free Trade Port benefit from the universal policy of a reduced 15% corporate income tax rate. This policy advantage ultimately translates into more competitive service pricing, allowing international clients to share in the development opportunities presented by the Hainan Free Trade Port.
4. Logistics Optimization: Proximity Maintenance Enhancing Efficiency
By establishing bonded maintenance bases in Hainan, power generation equipment from markets in Southeast Asia, the Middle East, and Africa no longer needs to travel across oceans to European or American original factories, significantly reducing logistics radius. Compared to traditional maintenance centers such as Singapore and Hong Kong, Hainan offers lower maintenance costs and stronger market competitiveness.
5. Customs Clearance Acceleration: Intelligent Supervision Reducing Time
Haikou Customs implements an intelligent supervision model of "one enterprise, one ledger" for bonded maintenance operations. Enterprise ERP systems are connected with customs, enabling "seamless" customs clearance. When importing used mechanical and electrical products that no longer require licenses, the system automatically creates and updates ledger entries after customs declaration release, with subsequent import data automatically incorporated into the ledger without requiring manual declaration. Compared to traditional models, approval procedures are significantly simplified, and customs clearance efficiency is markedly improved.
6. Broad Policy Coverage: Nation's Most Comprehensive Bonded Maintenance Catalog
Following the implementation of independent customs operations at the Hainan Free Trade Port, 38 new items have been added to the "both ends overseas" bonded maintenance catalog beyond the comprehensive bonded zone maintenance product catalog, covering generators, engines, medical equipment, and other fields, forming the most extensive catalog list nationwide. This provides clear policy support for generator manufacturers, distributors, and repair service providers to establish maintenance centers in Hainan.
III. Policy Value: Creating Tangible Benefits for International Clients
Overall, the Hainan Free Trade Port's bonded maintenance policy delivers maintenance cost optimization for generators through:
l Capital cost reduction: Triple policy combination of tariff exemption, deposit exemption, and 15% income tax
l Time cost reduction: Proximity maintenance plus intelligent customs clearance, shortening logistics and clearance cycles
l Supply chain optimization: Zero-tariff parts import, reducing material procurement costs
These policy advantages are positioning Hainan as an emerging global hub for generator bonded maintenance, offering international clients more efficient and economical equipment maintenance solutions.
IV. Hainan Longpan: A Pioneer in Hainan's Bonded Maintenance Sector
As a Hainan Province "Specialized and Sophisticated" Enterprise and a National High-Tech Enterprise, Longpan Oilfield Technology has deep expertise in the marine engine and generator set maintenance sector. In August 2025, the company was approved as the province's first pilot enterprise for bonded maintenance outside special customs supervision areas. In December of the same year, it successfully completed its first marine diesel engine bonded maintenance business, marking the inaugural implementation of the Hainan Free Trade Port's bonded maintenance policy following its extension to the entire island. The company employs over 300 technical personnel, with its ERP system integrated with customs to enable "seamless" clearance. Currently leveraging Free Trade Port advantages, it is advancing its "Buy Global, Repair Global, Sell Global, Invest Global" strategy, transitioning toward a global energy power system service provider.