Guangdong Liansu Yangming Building Materials Co., Ltd. Supplier Evaluation

Executive Summary

Guangdong Liansu Yangming Building Materials Co., Ltd. is a China-based supplier located in Guangdong, offering UPVC, PVC, ASA resin roofing sheets, roof tiles, and waterproof/weather-resistant roofing panels. The supplier shows relatively solid production-side fundamentals, with a reported factory area of 50,000+ sqm, 140+ staff, and verified supplier status. Platform credibility is supported by Gold Supplier status for 2 years, Trade Assurance, Finished Product Inspection, Full Customization, ODM availability, and Minor Customization labels. However, its commercial performance data is weak: only 1 order and CN¥407.7+ transaction value in the past six months, with a 4.3 store rating based on only 1 review. Delivery performance is strong at 100.0% on-time shipment, but the small order base limits validation depth. This supplier is more suitable for buyers seeking roofing material sourcing with factory-backed production capacity, but initial cooperation should proceed through samples, small trial orders, and Trade Assurance-protected transactions.

Detailed Analysis

1. Company Strength

Basis

• Company name: Guangdong Liansu Yangming Building Materials Co., Ltd.
• Country/region: China, Guangdong
• Factory area: 50,000+ sqm
• Employees: 140+ staff
• Verified supplier/factory audit status: True

Elaboration

The supplier demonstrates a relatively strong physical production foundation. A 50,000+ sqm factory area indicates meaningful manufacturing space and suggests capacity to support industrial-scale roofing material production. The employee count of 140+ staff reflects a medium-sized workforce rather than a very large enterprise, but it is still sufficient to indicate organized operational capability. The verified supplier status further strengthens confidence that the company has undergone some form of platform or factory-related verification.

Scoring Rationale

The large factory area is a strong positive factor, while the 140+ staff count positions the company closer to a medium-sized manufacturer rather than a very large-scale supply chain group. Because verified supplier status is present, the production credibility is stronger than suppliers with only basic storefront information. However, the available data does not include annual production capacity, production lines, equipment details, or export volume, so the score should not reach the highest range.

Final Score

17 / 20

2. Platform & Compliance Credibility

Basis

• Gold Supplier: True
• Gold Supplier tenure: 2 years
• Trade Assurance: True
• Verification/factory audit status: True
• Certification/industry labels: Finished product inspection, Full customization, ODM service available, Minor customization

Elaboration

The supplier has several important platform credibility indicators. Gold Supplier status and Trade Assurance support provide basic transactional protection and platform-level credibility. The supplier also carries several capability labels, including Finished Product Inspection and customization-related services. However, the Gold Supplier tenure is only 2 years, which is relatively short compared with long-established suppliers.

Scoring Rationale

Core platform credibility elements are present: Gold Supplier status, Trade Assurance, verified supplier status, and relevant service/inspection labels. This supports a positive compliance and platform trust assessment. The main limitation is the relatively short 2-year Gold Supplier history, which means the supplier has not yet demonstrated long-term platform track record. No additional third-party certifications, international standards, or industry compliance documents were provided, so the score remains in the upper-middle range rather than the top tier.

Final Score

16 / 20

3. Business Performance

Basis

• Orders in the past 6 months: 1
• Transaction value in the past 6 months: CN¥407.7+
• Store rating: 4.3
• Number of reviews: 1

Elaboration

The supplier’s recent transaction data is limited. Only 1 order and CN¥407.7+ in transaction value over the past six months indicate very low visible commercial activity on the platform. The store rating of 4.3 is acceptable, but it is based on only 1 review, which makes the rating statistically weak and not sufficient to confirm stable buyer satisfaction.

Scoring Rationale

Business performance is the weakest area in the profile. Although the supplier has at least one recorded transaction and a visible store rating, the low order count, low transaction amount, and minimal review base provide insufficient evidence of broad market acceptance or repeated buyer validation. The company may still have offline business or non-platform transactions, but such information was not provided and therefore cannot be considered in scoring.

Final Score

9 / 20

4. Service Capability

Basis

• Communication response time: ≤4h
• Full Customization: Available
• Minor Customization: Available
• ODM service: Available

Elaboration

The supplier provides a response time of within 4 hours, which is acceptable for B2B sourcing communication. The presence of Full Customization, Minor Customization, and ODM service labels indicates that the supplier can support different levels of product adaptation, which may be important for roofing sheet buyers requiring specific dimensions, colors, profiles, or application requirements.

Scoring Rationale

The supplier demonstrates good customization capability and reasonable response efficiency. However, the response time is not within the strongest benchmark of ≤1 hour, so it does not qualify for the highest service score range. The service profile is still stronger than basic suppliers because multiple customization-related labels are present.

Final Score

8 / 10

5. Delivery Performance

Basis

• On-time shipment rate: 100.0%

Elaboration

The reported on-time shipment rate is excellent and meets the highest scoring benchmark. A 100.0% on-time shipment rate indicates that, based on available platform data, the supplier has fulfilled shipments within the required timeframe.

Scoring Rationale

According to the scoring standard, an on-time shipment rate above 90% qualifies for 9–10 points. The supplier’s 100.0% rate supports a full score for delivery performance. However, this result should be interpreted with caution because the recent business data shows only 1 order in the past six months, meaning the delivery performance is based on a limited transaction sample.

Final Score

10 / 10

6. Quality & Customer Feedback

Basis

• Store rating: 4.3
• Number of reviews: 1
• Finished Product Inspection: Available
• Verified supplier/factory audit status: True
• Factory Verification: Insufficient Data as a separate label; verified supplier status is provided

Elaboration

The supplier has a Finished Product Inspection label, which is a positive quality-control indicator. Verified supplier status also adds credibility to the supplier’s profile. However, customer feedback is very limited, with only 1 review available. The 4.3 rating is moderate-to-good, but the review count is too low to confirm consistent product quality or buyer satisfaction across multiple transactions.

Scoring Rationale

The quality assurance structure is stronger than suppliers with no inspection or verification information, mainly due to Finished Product Inspection and verified supplier status. However, the customer feedback base is weak. A single review does not provide enough evidence to validate long-term quality consistency, defect handling, or repeat buyer satisfaction. Therefore, the supplier fits the “good basic quality assurance but limited feedback validation” range.

Final Score

15 / 20

Total Score

75 / 100

Procurement Recommendation

Cooperation is conditionally recommended.

This supplier appears suitable for buyers sourcing UPVC, PVC, ASA resin roofing sheets, and related waterproof or weather-resistant roofing materials, especially customers who value factory scale, customization capability, and Trade Assurance-supported transactions. The supplier’s strengths are its 50,000+ sqm factory area, verified supplier status, Trade Assurance availability, customization labels, Finished Product Inspection, and 100.0% on-time shipment rate.

The main risks are weak commercial validation, very low recent transaction volume, only 1 review, and limited evidence of large-scale buyer feedback. The 100.0% delivery rate is positive but should be viewed cautiously because the available order base is small.

Recommended cooperation approach: - Start with product samples or a small trial order. - Use Trade Assurance for payment and delivery protection. - Confirm specifications, inspection standards, packaging, and lead time before bulk purchasing. - Request additional factory, production capacity, QC, and past shipment documentation before placing large-volume orders.

Overall, the supplier has good production and platform foundations, but its limited transaction history means it is better suited for cautious development rather than immediate high-value bulk procurement.