Shanghai Ruizhan Plastic Manufacture Co., Ltd. Supplier Evaluation

Executive Summary

Shanghai Ruizhan Plastic Manufacture Co., Ltd. is a China-based supplier located in Shanghai, with a reported factory area of 10,000+ m² and 40+ staff. The company focuses on PVC/plastic/rubber extrusion-related products, including PVC stair nosing protectors, tile edge stair nosing, anti-slip extrusion profiles, and customized PVC/rubber profiles. Based on the provided data, the supplier demonstrates a relatively established platform presence, including 11 years as an Gold Supplier, Trade Assurance support, and verified supplier status. Its recent business activity is measurable, with 90+ orders and CN¥1.7M+ transaction value in the past six months. The on-time delivery rate of 92.5% is a positive indicator for operational reliability. However, the available customer feedback base is limited, with only 10 reviews, and there is insufficient data on formal product inspection systems, finished product inspection, factory audit details, or internationally recognized quality certifications. This supplier appears suitable for buyers seeking medium-scale PVC extrusion sourcing with platform-backed transaction protection.

Detailed Analysis

1. Company Strength

Basis
- Factory location: Shanghai, China
- Factory area: 10,000+ m²
- Staff size: 40+ staff
- Verified supplier: True
- Main product scope: PVC/plastic/rubber extrusion profiles and stair nosing-related products

Elaboration
The supplier has a relatively sizable reported factory area of over 10,000 m², which suggests a meaningful physical production base for extrusion-related manufacturing. The staff size of 40+ indicates a small-to-medium operational team rather than a large labor-intensive factory. The product listings are concentrated around PVC plastic rubber extrusion, stair nosing protectors, anti-slip profiles, and tile edge applications, showing a focused product category rather than a highly diversified catalog.

Scoring Rationale
The 10,000+ m² factory area is a positive indicator of production space and potential manufacturing capacity. However, the 40+ staff count limits the assessment from being categorized as a large-scale supply chain operation. The verified supplier status strengthens credibility, but the data does not provide details on production lines, monthly capacity, machinery, audit reports, or factory certifications beyond verification status. Therefore, the company fits best into the medium stable factory range, with some limitations due to incomplete production-scale data.

Final Score
16 / 20

2. Platform & Compliance Credibility

Basis
- Gold Supplier: True
- Gold Supplier duration: 11 years
- Trade Assurance: True
- Verified supplier: True
- Certification/industry tags provided: “Response time ≤2h”, “On-time delivery 92.5%”
- Other compliance certifications: Insufficient Data

Elaboration
The supplier has an established platform history, with 11 years as an Gold Supplier. Trade Assurance support provides a platform-level transaction protection mechanism, and verified supplier status adds credibility to its marketplace profile. The available tags show measurable service and delivery indicators, but no additional third-party factory audit documents, ISO certifications, product compliance certificates, or industry-specific certifications are provided in the dataset.

Scoring Rationale
An 11-year Gold Supplier record, Trade Assurance support, and verified supplier status represent strong platform credibility. These elements indicate a long-standing and transaction-enabled presence. However, the certification profile is not complete because the available tags mainly relate to response time and delivery performance, not formal quality, factory, or product compliance certification. The score is therefore high but not at the maximum level.

Final Score
18 / 20

3. Business Performance

Basis
- Orders in the past 6 months: 90+
- Transaction value in the past 6 months: CN¥1.7M+
- Store rating: 4.6
- Number of reviews: 10

Elaboration
The supplier has measurable recent transaction activity, with more than 90 orders and over CN¥1.7M in transaction value during the past six months. This indicates that the supplier is commercially active and has converted platform visibility into actual transactions. The store rating of 4.6 is generally positive, but the review count of 10 is relatively limited, which reduces the statistical confidence of the customer feedback profile.

Scoring Rationale
The order volume and transaction value show stable commercial performance rather than weak or unverified trading activity. A 4.6 rating is favorable, but the low review count prevents the supplier from being assessed as having broad customer validation. The business performance is stronger than a low-volume supplier, yet it does not fully meet the highest tier because customer feedback volume is limited.

Final Score
16 / 20

4. Service Capability

Basis
- Communication response time: ≤2h
- Platform tag: “Response time ≤2h”
- Full Customization support: Insufficient Data

Elaboration
The supplier’s response time of within two hours indicates acceptable communication efficiency for online sourcing and inquiry handling. This is useful for buyers who need quotation follow-up, specification clarification, or order coordination. The product listings include terms such as “custom” and “extrusion profile,” but the dataset does not explicitly confirm Full Customization capability, customization scope, engineering support, mold development, or sample development process.

Scoring Rationale
The response time is positive, but it does not meet the strongest service benchmark of response within one hour. In addition, Full Customization is not explicitly confirmed in the provided data, so the service capability cannot be scored in the top range. The supplier appears to have normal communication responsiveness, but customization capability remains only partially supported by product naming and is therefore treated as insufficiently evidenced.

Final Score
7 / 10

5. Delivery Performance

Basis
- On-time delivery rate: 92.5%

Elaboration
The supplier’s reported on-time delivery rate is 92.5%, which is above the 90% benchmark for strong delivery performance. This suggests that the supplier has a relatively reliable fulfillment record based on the provided platform delivery metric. For buyers sourcing extrusion profiles or stair nosing products with repeat-order needs, this delivery indicator is a meaningful operational advantage.

Scoring Rationale
According to the scoring framework, an on-time delivery rate above 90% falls into the 9–10 point range. Since the rate is 92.5%, it qualifies for a strong score. However, the data does not include shipment volume, destination markets, lead times, or late-shipment reasons, so the score is not set at the absolute maximum.

Final Score
9 / 10

6. Quality & Customer Feedback

Basis
- Store rating: 4.6
- Number of reviews: 10
- Verified supplier: True
- Finished Product Inspection: Insufficient Data
- Factory Verification details: Insufficient Data beyond verified supplier status
- Product quality certifications: Insufficient Data

Elaboration
The supplier has a positive store rating of 4.6, which indicates generally favorable buyer feedback. However, the number of reviews is only 10, which limits the reliability of the rating as a broad customer satisfaction indicator. The dataset confirms verified supplier status, but it does not provide evidence of Finished Product Inspection, detailed factory verification reports, quality control workflow, inspection standards, defect rate, or product compliance documentation.

Scoring Rationale
The 4.6 rating supports a positive quality impression, but the limited review count weakens the depth of customer validation. The lack of explicit finished product inspection data and detailed factory verification information also prevents a higher score. The supplier has basic quality credibility through platform verification and customer rating, but the quality assurance system is not sufficiently documented in the provided data.

Final Score
13 / 20

Total Score

79 / 100

Procurement Recommendation

Shanghai Ruizhan Plastic Manufacture Co., Ltd. is recommended for conditional cooperation, especially for buyers seeking PVC/plastic/rubber extrusion profiles, stair nosing protectors, tile edge profiles, and related anti-slip extrusion products with moderate order volumes. The supplier shows strong platform credibility, an established 11-year presence, Trade Assurance support, verified supplier status, and a strong 92.5% on-time delivery rate.

The main risks are limited customer review volume, insufficient data on formal quality inspection systems, insufficient evidence of Finished Product Inspection, and lack of detailed factory certification or product compliance information. Buyers should request factory audit documents, quality control procedures, sample inspection records, product specifications, and pre-shipment inspection arrangements before placing larger or long-term orders.

Overall, the supplier has good growth potential as a medium-scale, platform-validated extrusion product manufacturer, but it is better suited to controlled trial orders or repeat procurement with clear quality specifications rather than immediate high-risk bulk purchasing without additional verification.