Qingdao Haidelong Biotechnology Co., Ltd. Supplier Evaluation
Executive Summary
Qingdao Haidelong Biotechnology Co., Ltd. is a China-based supplier located in Shandong, positioned in agricultural fertilizer-related products including microbial liquid fertilizer, chelated iron fertilizer, amino acid fertilizer, nitrogen fertilizer, and EDTA copper sodium products. The company shows a moderate manufacturing base with a reported factory area of 3,400+ sqm, 110+ staff, and verified supplier status. Its platform credibility is relatively strong, supported by 7 years as a Gold Supplier, Trade Assurance, and service/quality tags including Finished Product Inspection, ODM service, Full Customization, and Minor Customization. Business activity appears stable but not high-volume, with 20+ orders and CN¥473.2K+ transaction value over the past six months. The store rating is 5.0, but the review base is very limited at only 2 reviews. This supplier is suitable for buyers seeking mid-scale fertilizer-related sourcing with customization capability, while larger buyers should further verify production capacity, quality consistency, and export compliance before bulk procurement.

Detailed Analysis
1. Company Strength
Basis
- Factory area: 3,400+ sqm
- Employees: 110+ staff
- Verified supplier: True
- Location: Shandong, China
Elaboration
The supplier has a defined production base with a factory area above 3,400 sqm and more than 110 employees. This indicates a real operating structure rather than a very small trading-only profile. The verified supplier status adds credibility to the existence and basic operational capacity of the company. However, the provided data does not include annual production capacity, number of production lines, equipment details, export volume, or factory audit reports beyond the verified supplier indicator.
Scoring Rationale
The company appears to be a medium-sized supplier with a reasonable staff base and physical facility size. It does not reach the level of a large-scale supply chain because the factory area and workforce are moderate, and no large-capacity production metrics are provided. The verified supplier status supports confidence in basic production capability, but the lack of detailed capacity data limits the score.
Final Score
16 / 20
2. Platform & Compliance Credibility
Basis
- Gold Supplier: True
- Gold Supplier duration: 7 years
- Trade Assurance: True
- Certification / industry tags: Finished Product Inspection, ODM service available, Full customization, Minor customization
- Verified supplier: True
Elaboration
The supplier has maintained Gold Supplier status for 7 years, which indicates a relatively established platform presence. Trade Assurance support provides buyers with additional transaction protection. The listed platform tags also show that the supplier has declared quality inspection and customization-related capabilities. Verified supplier status further strengthens platform credibility.
Scoring Rationale
The supplier has a strong platform compliance profile, including long-term Gold Supplier membership, Trade Assurance, and verified supplier status. The certification and service tags are relatively complete for -based sourcing. However, the data does not provide independent third-party certifications, international quality certifications, or detailed compliance documents, so the score should remain slightly below the maximum.
Final Score
18 / 20
3. Business Performance
Basis
- Orders in the past 6 months: 20+
- Transaction value in the past 6 months: CN¥473.2K+
- Store rating: 5.0
- Number of reviews: 2
Elaboration
The supplier has recorded 20+ orders and CN¥473.2K+ in transactions over the last six months, showing active commercial performance on the platform. The 5.0 store rating is positive, but the number of reviews is only 2, which means the rating is based on a very limited feedback sample. This reduces the reliability of the rating as a broad indicator of buyer satisfaction.
Scoring Rationale
The transaction value and order count suggest stable but not high-volume business activity. The supplier has market validation through recent orders, but the commercial scale is not strong enough to be classified as high-performance. The very small review count creates uncertainty around repeat satisfaction and consistency across multiple buyers.
Final Score
15 / 20
4. Service Capability
Basis
- Communication response time: ≤9h
- Full customization: Available
- Minor customization: Available
- ODM service: Available
Elaboration
The supplier provides multiple customization options, including Full Customization, Minor Customization, and ODM service. This is a positive indicator for buyers requiring product adaptation or private-label development. The response time of ≤9 hours is acceptable, but it is not at the highest service level, which would require a response time of one hour or less.
Scoring Rationale
Customization capability is a clear strength based on the platform tags. However, the response time is moderate rather than fast. Since the supplier does not meet the ≤1h response benchmark, it should not receive a top-tier service score. The available data supports a normal-to-good service capability assessment.
Final Score
7 / 10
5. Delivery Performance
Basis
- On-time delivery rate: 92.9%
Elaboration
The supplier’s reported on-time delivery rate is 92.9%, which is above the 90% threshold. This indicates relatively reliable delivery performance based on the available platform data. No further data is provided regarding average lead time, shipping methods, delay causes, or performance by order size.
Scoring Rationale
According to the scoring standard, an on-time delivery rate above 90% qualifies for a 9–10 point range. The 92.9% rate is strong, though not perfect. Because supporting details such as lead-time consistency and shipment volume are not provided, a score of 9 is more appropriate than the maximum.
Final Score
9 / 10
6. Quality & Customer Feedback
Basis
- Store rating: 5.0
- Number of reviews: 2
- Finished Product Inspection: Available
- Verified supplier: True
Elaboration
The supplier has a perfect 5.0 store rating, and Finished Product Inspection is listed as an available quality-related tag. Verified supplier status also provides a basic credibility layer. However, only 2 customer reviews are available, which is insufficient to confirm consistent product quality across a broad buyer base. No test reports, product certifications, batch inspection records, or complaint history are provided.
Scoring Rationale
The quality indicators are positive but limited. Finished Product Inspection supports basic quality assurance, and the 5.0 rating is favorable. However, the very small number of reviews prevents the rating from being considered highly representative. The supplier deserves a good but not top-tier score because the quality assurance system is only partially evidenced by the provided data.
Final Score
15 / 20
Total Score
80 / 100
- Company Strength: 16 / 20
- Platform & Compliance Credibility: 18 / 20
- Business Performance: 15 / 20
- Service Capability: 7 / 10
- Delivery Performance: 9 / 10
- Quality & Customer Feedback: 15 / 20
Procurement Recommendation
Qingdao Haidelong Biotechnology Co., Ltd. is recommended for cautious cooperation, especially for buyers seeking fertilizer-related products with customization options and moderate order volumes. The supplier is suitable for small to medium-sized importers, agricultural distributors, private-label buyers, and buyers who value Trade Assurance and platform-verified sourcing.
The main strengths are its 7-year Gold Supplier status, Trade Assurance support, verified supplier status, customization capability, Finished Product Inspection tag, and 92.9% on-time delivery rate. These factors indicate a supplier with credible platform presence and acceptable operational reliability.
The main risks are the limited customer feedback base, with only 2 reviews, and insufficient disclosed data on production capacity, certifications, quality testing, export compliance, and large-order fulfillment capability. For high-volume or regulated-market procurement, additional due diligence is necessary.
Growth potential is moderate to good. The supplier has an established platform history and active transaction record, but it needs stronger quality documentation, more buyer reviews, and clearer production capacity evidence to qualify as a lower-risk strategic supplier.
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