Chapter 1 Bidding Announcement Project Name: Zhonglong Meat Food Industrial Park 4T Boiler Replacement Project Bidding Number: zl20260513001 Tendering Party: Shenzhen Zhonglong Food Co., Ltd. Project Location: No. 135 Xinglong North Road, Longtian Street, Pingshan District, Shenzhen 1. Project Overview and Bidding Scope 1.1 This bidding covers the entire turnkey project including demolition of the original old boiler, procurement of a new boiler and auxiliary equipment, gas pipelines, transportation, installation, commissioning, acceptance, personnel training, and warranty period services. 1.2 Boiler Parameters: - Type: Gas-fired steam boiler - Rated evaporation capacity/heat supply: Replace the original old 4T/h boiler with 1 unit of 2T/h boiler - Rated working pressure: 1.25MPa - Rated steam/outlet water temperature: 193°C - Fuel: Natural gas - Quantity: 1 unit - Brands: Miura, Liju, Hangbo, Yuntian 1.3 Supporting Scope: Boiler body, burner, flue gas system, water treatment, feed pump/circulating pump, valves and instruments, PLC control cabinet, chimney, gas pipeline, pipeline connections, insulation and anti-corrosion, environmental emission compliance (NO? and smoke dust meeting the latest local standards) (The bidder shall conduct on-site survey, and the original boiler supporting facilities that can be reused should be reused as much as possible). 1.4 Construction Period: Complete demolition + supply + installation + commissioning + acceptance and handover within 40 calendar days after contract signing. 2. Bidder Qualification Requirements 2.1 An independent legal entity with a valid business license. 2.2 Possess a boiler manufacturing license (Class A/Class B, corresponding parameters) or a boiler installation, modification, and maintenance license (corresponding level); if acting as an agent, the manufacturer's authorization and manufacturer qualification certificate must be provided. 2.3 Have at least 3 boiler supply/installation performance records with equivalent parameters within the past 3 years, and provide contracts and acceptance certificates. 2.4 Not listed as a dishonest judgment debtor, major tax violation dishonest entity, or included in the government procurement serious dishonesty list (provide credit inquiry screenshots). 3. Submission of Bidding Documents 3.1 Submission deadline: 17:00 (Beijing Time), June 15, 2026. 3.2 Submission location: Administrative and Human Resources Department of Zhonglong Food. 3.3 The tendering party has the right to reject bidding documents submitted late or not sealed as required. 4. Bid Opening Time and Location 4.1 Bid opening time: June 16, 2026. 4.2 Evaluation method: Internal evaluation. 5. Announcement Media This bidding announcement is published on the company's official website and WeChat official account. Tendering Party (seal): Shenzhen Zhonglong Food Co., Ltd. Date: June 5, 2026 Chapter 2 Instructions to Bidders 1. Definitions - Tendering Party: . - Bidder: A legal entity that responds to the tender and participates in the bidding competition - Goods: Boiler body, auxiliary equipment, materials, spare parts, etc. - Services: Design, transportation, installation, commissioning, training, warranty period services, etc. 2. Bid Document Requirements 2.1 Quotation Requirements: 2.1.1 The bid price shall be a total price including tax, covering: demolition fees, equipment fees, transportation fees, loading and unloading fees, installation fees, auxiliary material fees, commissioning fees, acceptance fees, training fees, warranty period service fees, insurance fees, taxes, and all other costs. The tendering party will not pay any additional costs. 2.1.2 Quotation method: Fixed total price contract, not adjusted due to market price fluctuations. 2.2 Technical Bid Requirements: Shall include construction plans for demolishing old equipment and installing new equipment, layout drawings, etc. Chapter 3 Technical Specifications and Requirements 1. Standards and Regulations Must comply with (but not limited to): - "Steam Boiler Safety Technology Supervision Regulations" and "Hot Water Boiler Safety Technology Supervision Regulations" - GB/T1576 "Industrial Boiler Water Quality" - GB50273 "Construction and Acceptance Specifications for Boiler Installation Engineering" - Latest Shenzhen environmental emission standards (NO?, smoke dust, SO?) 2. Boiler Body Technical Requirements 2.1 Model and specification: 【】, quantity: 1 unit. 2.2 Design pressure: ≥1.25MPa, maximum working pressure: 【】MPa. 2.3 Thermal efficiency: ≥98% (conventional type). 2.4 Burner: Well-known brand [e.g., Weishaupt Germany/Riello Italy], low-nitrogen combustion (NO? ≤30mg/m3). 2.5 Material: Pressure-bearing components shall comply with national standards, with material certificates provided. 2.6 Control system: PLC + touch screen, with automatic start/stop, load adjustment, low water/overpressure/overtemperature/flame failure protection, fault alarm, data recording, and remote transmission interface. 3. Supply and Installation Scope - Safe demolition of the old boiler and auxiliary facilities (ownership belongs to the tendering company after demolition), removal, and site cleaning. - Complete supply and installation of the new boiler body, burner, chimney, valves, instruments, pipelines, insulation, anti-corrosion, electrical control cabinet, cables, cable trays, etc. - System commissioning, integrated trial operation, environmental testing compliance, and handling of special equipment use registration. - Provide complete completion documents, drawings, operation manuals, maintenance manuals, certificates of conformity, and inspection certificates. 4. Acceptance Standards 4.1 Equipment appearance, specifications, models, and quantity shall be consistent with the contract. 4.2 Installation quality shall comply with GB50273 and relevant specifications. 4.3 Cold/hot commissioning shall pass, with continuous stable operation for 72 hours without failure. 4.4 Environmental emissions shall pass third-party testing and obtain a qualified report. 4.5 Pass acceptance by the local special equipment inspection authority and obtain the "Special Equipment Use Registration Certificate." 5. Warranty Period and After-Sales Service 5.1 Warranty period: ≥12 months from the date of acceptance (or according to national standards + manufacturer's commitment, whichever is higher). 5.2 During the warranty period: Free repair, free replacement of parts, free technical support, 24-hour response, arrival at site within 4 hours, and repair of major faults within 24 hours. 5.3 Lifetime preferential supply of spare parts at prices not higher than the contract price.