Qingdao Zhongsi Rubber & Plastic Products Co., Ltd. Supplier Evaluation
Executive Summary
Qingdao Zhongsi Rubber & Plastic Products Co., Ltd. is a China-based supplier located in Shandong, with a reported factory area of 9,000+㎡ and 70+ staff. The company appears to operate as a mid-sized manufacturing supplier in rubber and plastic-related products, including HDPE welding rods, synthetic ice rink flooring, UHMWPE sheets, and artificial ice skating boards. Its platform profile shows strong credibility indicators, including 8 years as a Gold Supplier, Trade Assurance support, verified supplier status, Finished Product Inspection, and customization-related tags. Business activity is moderate to solid, with 70+ orders and CN¥1.4M+ transaction value in the past six months. The store rating is excellent at 5.0, but the review count is limited to 8, which restricts the depth of customer feedback validation. Overall, this supplier is suitable for buyers seeking mid-scale plastic/rubber product sourcing, low-MOQ customization, and platform-backed transaction security, while larger enterprise buyers may require further factory audit and quality validation.

Detailed Analysis
1. Company Strength
Final Score: 15 / 20
Basis
- Factory location: Shandong, China
- Factory area: 9,000+㎡
- Staff size: 70+ staff
- Verified supplier/factory status: True
Elaboration
The supplier has a clearly stated physical manufacturing base with 9,000+㎡ of factory area and more than 70 employees. This indicates a real production setup rather than a purely trading-oriented profile. The company’s scale is not small, but based on the provided data, it does not reach the level of a very large-scale industrial manufacturer. The verified supplier/factory status provides additional confidence that the company has undergone some level of platform or third-party verification.
Scoring Rationale
The company demonstrates stable mid-sized manufacturing capability. The factory area is meaningful, and the employee count supports basic to moderate production capacity. However, the data does not include annual production capacity, number of production lines, equipment list, export volume, or factory audit reports beyond the verified status. Therefore, it should be classified as a medium stable factory rather than a large-scale supply chain operator.
Final Score
15 / 20
2. Platform & Compliance Credibility
Final Score: 19 / 20
Basis
- Gold Supplier: True
- Gold Supplier duration: 8 years
- Trade Assurance: True
- Verified supplier/factory status: True
- Certification / industry tags:
- Low MOQ for customization
- Finished product inspection
- Minor customization
Elaboration
The supplier has a strong platform profile. An 8-year Gold Supplier history indicates long-term platform presence and continuity. Trade Assurance support provides transaction protection for buyers, while verified supplier status strengthens credibility. The presence of Finished Product Inspection is also an important quality-related platform label. Customization-related tags show that the supplier can support some level of customized orders, particularly low-MOQ and minor customization.
Scoring Rationale
This dimension is one of the supplier’s strongest areas. The combination of 8-year Gold Supplier status, Trade Assurance, verified supplier status, and inspection-related labels creates a relatively complete credibility structure. The only limitation is that the provided data does not show additional third-party management system certifications such as ISO or product-specific compliance certificates. Since these are not provided, they cannot be assumed.
Final Score
19 / 20
3. Business Performance
Final Score: 16 / 20
Basis
- Orders in the past 6 months: 70+
- Transaction amount in the past 6 months: CN¥1.4M+
- Store rating: 5.0
- Number of reviews: 8
Elaboration
The supplier has visible recent transaction activity, with more than 70 orders and over CN¥1.4M in transaction value during the past six months. This indicates that the company is commercially active and has received actual buyer orders through the platform. The store rating of 5.0 is highly positive, but the review count is only 8, which limits the statistical reliability of the rating.
Scoring Rationale
The business performance is solid for a mid-sized supplier. The transaction amount and order count show real market activity and a reasonable degree of buyer acceptance. However, compared with suppliers that have very high order volumes, larger transaction records, and extensive review history, the commercial validation is still moderate rather than exceptional. The low review count is the main factor preventing a higher score.
Final Score
16 / 20
4. Service Capability
Final Score: 7 / 10
Basis
- Communication response time: ≤2h
- Customization-related tags:
- Low MOQ for customization
- Minor customization
- Full Customization: Insufficient Data
Elaboration
The supplier’s response time of within two hours is acceptable and indicates relatively responsive communication. The presence of “Low MOQ for customization” and “Minor customization” suggests that the supplier can handle some buyer-specific requirements, particularly small-batch or limited-scope adjustments. However, the data does not confirm full customization capability.
Scoring Rationale
The supplier demonstrates normal to good service responsiveness, but it does not meet the highest service capability standard because the response time is not within one hour and Full Customization is not confirmed. The available customization capability appears to be basic to moderate rather than advanced. Therefore, a mid-to-good score is appropriate.
Final Score
7 / 10
5. Delivery Performance
Final Score: 10 / 10
Basis
- On-time delivery rate: 100.0%
Elaboration
The supplier reports a 100.0% on-time delivery rate. Based on the scoring standard, any supplier with an on-time delivery rate above 90% qualifies for the highest scoring range in this dimension.
Scoring Rationale
The delivery performance is excellent based on the provided data. A 100.0% on-time shipment rate indicates strong fulfillment discipline within the available platform record. However, the data does not include total shipment count, average lead time, or late-delivery dispute history, so the assessment is limited to the reported on-time delivery rate.
Final Score
10 / 10
6. Quality & Customer Feedback
Final Score: 16 / 20
Basis
- Store rating: 5.0
- Number of reviews: 8
- Finished Product Inspection: True
- Verified supplier/factory status: True
Elaboration
The supplier has a 5.0 store rating, which is a strong quality and service signal. Finished Product Inspection indicates that some level of outgoing quality control is recognized on the platform. Verified supplier/factory status also supports the reliability of the company profile. However, the review count is limited, with only 8 reviews available, which reduces the depth of customer feedback evidence.
Scoring Rationale
The supplier has good quality-related indicators, especially the perfect store rating and Finished Product Inspection label. However, the limited number of reviews means that customer satisfaction has not yet been validated by a large feedback base. The absence of detailed product defect rates, inspection reports, quality certifications, or customer complaint records also limits the ability to assign a top-tier quality score.
Final Score
16 / 20
Total Score
| Dimension | Score |
|---|---|
| Company Strength | 15 / 20 |
| Platform & Compliance Credibility | 19 / 20 |
| Business Performance | 16 / 20 |
| Service Capability | 7 / 10 |
| Delivery Performance | 10 / 10 |
| Quality & Customer Feedback | 16 / 20 |
| Total Score | 83 / 100 |
Procurement Recommendation
Recommendation: Recommended for conditional cooperation.
Qingdao Zhongsi Rubber & Plastic Products Co., Ltd. is a credible mid-sized supplier with strong platform backing, 8 years of Gold Supplier history, Trade Assurance, verified supplier status, Finished Product Inspection, and a 100.0% on-time delivery rate. It is suitable for buyers sourcing HDPE, UHMWPE, synthetic ice, and related rubber/plastic products, especially those requiring moderate order volumes, low-MOQ customization, or minor customization.
Suitable customer types:
- Small to medium-sized importers
- Project-based buyers of plastic/rubber materials
- Buyers requiring Trade Assurance protection
- Customers seeking moderate customization rather than complex full customization
Main risks:
- Review count is low at only 8, limiting customer feedback reliability.
- Full Customization capability is not confirmed.
- No detailed production capacity, equipment list, ISO certification, or product compliance certificates are provided.
- Quality assessment is platform-based and would benefit from additional inspection reports before bulk procurement.
Growth potential:
The supplier shows good platform maturity, stable recent transaction activity, and strong delivery performance. With more customer reviews, broader certification disclosure, and clearer production capability data, it could become more suitable for larger or more compliance-sensitive procurement programs.
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