Qingdao Doowin Rubber And Plastic Products Co., Ltd. Supplier Evaluation

Executive Summary

Qingdao Doowin Rubber And Plastic Products Co., Ltd. is a China-based supplier located in Shandong, with a reported factory area of 2,500+ sqm and 30+ staff. The company appears to operate as a small-to-medium specialized manufacturer or supplier, with listed products related to commercial diving, marine salvage air lifting, parachute marine salvage bags, heavy-duty proof load equipment, and water weight load testing products. Its platform credibility is relatively strong, supported by 14 years as an Gold Supplier, Trade Assurance availability, and verified supplier status. Commercial activity is present but moderate, with 10+ orders and CN¥135.2K+ transaction value over the past six months. The store rating is 5.0, but the review base is very limited at only 2 reviews. Delivery performance is strong, with a reported 100.0% on-time delivery rate. This supplier is most suitable for buyers seeking low-MOQ, specialized marine or industrial lifting-related products, while larger buyers should further verify production capacity, quality systems, and inspection procedures before bulk procurement.

Detailed Analysis

1. Company Strength

Basis:
The supplier reports a factory area of 2,500+ sqm, 30+ staff, and verified supplier status. The company is located in Shandong, China.

Elaboration:
The available data indicates that the supplier has a physical operating base and a defined workforce. A 2,500+ sqm facility and 30+ employees suggest basic manufacturing or assembly capacity, but the scale is not large compared with suppliers that operate extensive production lines or large labor forces. The verified supplier status provides some support that the company has undergone a level of platform-side verification, but no additional factory audit details, production line count, annual capacity, equipment list, or factory certification information is provided.

Scoring Rationale:
The company demonstrates foundational production capability and a verified business presence. However, the factory size and employee count place it closer to a small-to-medium supplier rather than a large-scale supply chain partner. Because there is insufficient data on production equipment, capacity utilization, factory certifications, or audit depth, the score should remain within the lower-middle range for suppliers with basic but not fully proven scale.

Final Score: 13/20

2. Platform & Compliance Credibility

Basis:
The supplier is listed as a Gold Supplier for 14 years, supports Trade Assurance, and is marked as a verified supplier. Platform tags include “Response time ≤5h” and “On-time delivery 100.0%.”

Elaboration:
A 14-year Gold Supplier history is a meaningful platform credibility indicator, especially when combined with Trade Assurance support. Verified supplier status further strengthens platform reliability, as it indicates that at least some supplier information has been checked. The listed tags provide operational indicators, although they are not equivalent to formal industry certifications or product compliance certificates. No specific ISO, CE, DNV, ABS, or other product/industry certifications are provided in the supplied data.

Scoring Rationale:
The supplier performs strongly in platform-based credibility due to long Gold Supplier tenure, Trade Assurance, and verification status. The main limitation is the absence of detailed certification labels or compliance documents beyond platform indicators. Therefore, the supplier deserves a high score, but not a perfect score, because the compliance profile is not fully documented.

Final Score: 18/20

3. Business Performance

Basis:
The supplier recorded 10+ orders and CN¥135.2K+ transaction value over the past six months. The store rating is 5.0, with 2 reviews.

Elaboration:
The supplier has demonstrated recent transaction activity, and the reported transaction amount indicates that buyers have placed paid orders through the platform. However, the order count is relatively limited, and the review base is very small. A 5.0 rating is positive, but with only 2 reviews, the statistical reliability of customer feedback is weak. The available data supports the conclusion that the supplier has active commercial performance, but not yet a high-volume or broadly validated transaction record.

Scoring Rationale:
Business performance is moderate. The supplier has measurable orders and transaction value, which reduces commercial uncertainty, but the order volume and review count are not high enough to indicate strong market validation. The score reflects a supplier with real but limited recent platform traction.

Final Score: 12/20

4. Service Capability

Basis:
The reported communication response time is ≤5 hours. No data is provided regarding Full Customization capability.

Elaboration:
A response time within five hours indicates acceptable communication efficiency for most procurement interactions. However, the data does not confirm whether the supplier supports Full Customization, design modification, private labeling, engineering adjustment, or buyer-specific product development. Since the product categories appear specialized, customization capability could be important, but it cannot be assumed without provided evidence.

Scoring Rationale:
The supplier shows reasonable responsiveness, but not the fastest service tier. Because Full Customization is not confirmed, the service capability cannot be scored in the highest range. The score reflects adequate communication performance with insufficient data on customization depth.

Final Score: 6/10

5. Delivery Performance

Basis:
The supplier reports an on-time delivery rate of 100.0%.

Elaboration:
The reported delivery performance is excellent based on the available data. A 100.0% on-time delivery rate indicates that recent platform-tracked shipments were completed within expected delivery timelines. However, the data does not specify the number of shipments behind this rate, so the reliability of the percentage depends on the underlying order volume.

Scoring Rationale:
According to the scoring standard, an on-time delivery rate above 90% qualifies for 9–10 points. Since the reported rate is 100.0%, the supplier receives the maximum score for this dimension. The limited order volume is already reflected in the Business Performance score and does not reduce the delivery score directly.

Final Score: 10/10

6. Quality & Customer Feedback

Basis:
The supplier has a store rating of 5.0 based on 2 reviews. The supplier is marked as verified. No data is provided for Finished Product Inspection. No separate Factory Verification details are provided beyond verified supplier status.

Elaboration:
The 5.0 store rating is positive, but the very small review count limits confidence in overall customer satisfaction. Verified supplier status provides some quality-related reassurance at the company level, but it does not replace detailed quality control evidence. There is no provided information on Finished Product Inspection, quality certifications, inspection reports, defect rates, product testing standards, or third-party factory verification results.

Scoring Rationale:
The supplier has a favorable rating and basic verification support, but the customer feedback sample is too small to establish strong quality reliability. The lack of Finished Product Inspection data and formal quality system evidence prevents a higher score. This dimension is therefore assessed as limited but not weak, due to the positive rating and verified supplier status.

Final Score: 12/20

Total Score

Company Strength: 13/20
Platform & Compliance Credibility: 18/20
Business Performance: 12/20
Service Capability: 6/10
Delivery Performance: 10/10
Quality & Customer Feedback: 12/20

Total Score: 71/100

Procurement Recommendation

Cooperation is conditionally recommended. Qingdao Doowin Rubber And Plastic Products Co., Ltd. appears suitable for buyers seeking specialized marine salvage, diving-related, air lifting, or load testing products with low MOQ requirements. The supplier’s strongest advantages are its 14-year Gold Supplier history, Trade Assurance support, verified supplier status, and 100.0% reported on-time delivery rate.

The main procurement risks are limited visible production scale, low recent order volume, only 2 customer reviews, and insufficient data on Finished Product Inspection, factory audit depth, quality certifications, and customization capability. For sample orders, small-batch procurement, or project-based purchasing, the supplier is a reasonable candidate. For large-volume or high-risk technical procurement, buyers should request additional documentation, including factory audit reports, product inspection records, quality control procedures, testing certificates, and references from previous orders.

Growth potential exists if the supplier can provide stronger quality documentation, expand transaction volume, and accumulate more customer reviews.