Shandong Sinocoroplast Packing Co., Ltd. Supplier Evaluation

Executive Summary

Shandong Sinocoroplast Packing Co., Ltd. is a China-based supplier located in Shandong, with a reported factory area of 21,000+㎡ and 150+ staff. Based on the provided data, the company appears to have a medium-scale manufacturing foundation and is marked as a verified supplier. Its product listings focus on customized PP corrugated plastic products, including storage items, yard signs, bollard covers, pedestrian path signs, and custom-shaped corrugated plastic signs. The supplier has strong platform credibility, supported by 14 years as an Gold Supplier and Trade Assurance availability. Business activity is moderate, with 50+ orders and CN¥270.4K+ transaction value over the past six months. However, the on-time delivery rate of 55.8% is a significant procurement risk. This supplier may be suitable for buyers seeking customized, low-MOQ corrugated plastic products, provided delivery timelines are carefully controlled and confirmed before order placement.

Detailed Analysis

1. Company Strength — 20 Points

Basis

• Factory location: Shandong, China
• Factory area: 21,000+㎡
• Employees: 150+ staff
• Verified supplier: True
• Product scope shown: PP corrugated storage products, yard signs, bollard covers, pedestrian path signs, custom-shaped PP corrugated plastic signs

Elaboration

The supplier has a reported factory area exceeding 21,000㎡ and a workforce of more than 150 staff, which indicates a meaningful manufacturing base rather than a small trading operation. The product listings are concentrated around PP corrugated plastic and related customized signage or packaging-type products, suggesting a focused production category. The presence of a verified supplier status further supports the credibility of the company’s operational foundation.

However, the available data does not include detailed production line count, annual capacity, machinery list, export markets, or specific factory audit reports beyond the verified supplier indication. Therefore, while the company demonstrates solid mid-sized factory characteristics, the evidence is not sufficient to classify it as a large-scale, fully transparent supply chain operation.

Scoring Rationale

The factory size and employee count support a stable medium-scale manufacturing profile. The verified supplier status strengthens confidence in the company’s basic operational legitimacy. However, because the data does not provide detailed production capacity, equipment information, or third-party factory certification documents, the score should remain within the “medium stable factory” range rather than the top tier.

Final Score

16 / 20

2. Platform & Compliance Credibility — 20 Points

Basis

• Gold Supplier: True
• Gold Supplier duration: 14 years
• Trade Assurance: True
• Verified supplier: True
• Certification / industry labels provided:
• Response time ≤3h
• On-time delivery 55.8%

Elaboration

The supplier has a long platform history, with 14 years as a Gold Supplier. This is a strong indicator of platform continuity and commercial presence. Trade Assurance availability adds transactional protection for buyers, especially for payment security and order dispute handling through the platform. The verified supplier status further enhances credibility from a compliance and supplier identity perspective.

That said, the provided certification or industry labels are limited. The listed labels mainly relate to response time and delivery performance. No specific product certifications, quality management certifications, social compliance audits, environmental certifications, or industry-standard certificates are provided in the data. Therefore, the supplier has strong platform credibility but limited visible compliance documentation beyond -related mechanisms.

Scoring Rationale

A 14-year Gold Supplier record combined with Trade Assurance and supplier verification represents a strong platform-backed credibility profile. This supports a high score. However, the absence of detailed compliance certifications or factory audit documentation prevents a full-score assessment.

Final Score

18 / 20

3. Business Performance — 20 Points

Basis

• Orders in the past six months: 50+
• Transaction value in the past six months: CN¥270.4K+
• Store rating: 4.9
• Number of reviews: 9

Elaboration

The supplier has recorded more than 50 orders in the past six months, which indicates active commercial transactions on the platform. The transaction value of CN¥270.4K+ shows a measurable level of sales activity, though it is not high enough to indicate very large-scale platform turnover based solely on the provided data. The store rating of 4.9 is strong, suggesting positive buyer satisfaction among reviewed transactions.

However, the review count is only 9, which is relatively limited as a statistical sample. A high rating based on a small number of reviews should be interpreted with caution. The supplier demonstrates real business activity and moderate transaction validation, but the limited review base prevents the business performance from being classified as highly validated.

Scoring Rationale

The supplier shows stable business activity through 50+ recent orders and CN¥270.4K+ transaction value. The 4.9 rating is favorable, but the low number of reviews reduces confidence in the consistency of buyer satisfaction. This places the supplier in the medium-performance range rather than the high-performance range.

Final Score

15 / 20

4. Service Capability — 10 Points

Basis

• Communication response time: ≤3h
• Response label: Response time ≤3h
• Full Customization support: Insufficient Data

Elaboration

The supplier’s response time of within three hours is acceptable for international sourcing communication and indicates a reasonable level of service responsiveness. This can support routine inquiry handling, quotation communication, and pre-order coordination.

However, the data does not clearly state whether the supplier supports Full Customization as a platform-verified service capability. Although several product titles include the word “custom,” this does not equal confirmed Full Customization capability under the specified scoring framework. Therefore, customization service strength cannot be fully validated from the available information.

Scoring Rationale

A response time of ≤3h is positive but does not meet the highest service benchmark of ≤1h. The lack of confirmed Full Customization data limits the score. The supplier appears to have normal service responsiveness, but there is insufficient evidence of advanced customization management capability.

Final Score

7 / 10

5. Delivery Performance — 10 Points

Basis

• On-time delivery rate: 55.8%

Elaboration

The supplier’s on-time delivery rate is 55.8%, which is significantly below the 70% threshold. This is the weakest area in the supplier profile. For procurement teams, especially those managing seasonal, promotional, event-based, or project deadline-driven products, this delivery performance creates clear operational risk.

Because the listed products include items such as graduation yard signs, pedestrian path signs, and customized printed products, timing may be important for some buyers. However, no additional delivery lead time, production cycle, logistics method, or delay reason is provided. Therefore, the assessment must be limited to the provided on-time delivery percentage.

Scoring Rationale

According to the scoring standard, delivery performance below 70% should receive fewer than 5 points. A rate of 55.8% indicates a substantial reliability concern and requires buyers to implement strict delivery confirmation, buffer time, and milestone tracking before placing orders.

Final Score

3 / 10

6. Quality & Customer Feedback — 20 Points

Basis

• Store rating: 4.9
• Number of reviews: 9
• Verified supplier: True
• Finished Product Inspection: Insufficient Data
• Factory Verification: Verified supplier status provided as True

Elaboration

The supplier has a high store rating of 4.9, which is a positive indicator of customer satisfaction. The verified supplier status also provides some quality-related confidence because it supports the legitimacy and basic verification of the supplier’s operations. However, the review count is only 9, which is a limited sample size and does not provide broad buyer feedback validation.

There is no provided information confirming Finished Product Inspection. There is also no detailed quality management certification, inspection workflow, defect rate, product testing standard, or complaint history in the supplied data. As a result, the quality assessment is supported by rating and verification data but lacks deeper quality assurance evidence.

Scoring Rationale

The supplier earns credit for a strong 4.9 rating and verified supplier status. However, the limited review volume and absence of confirmed Finished Product Inspection prevent a higher quality score. The available evidence supports basic quality confidence, but not a fully proven quality assurance system.

Final Score

13 / 20

Total Score

Procurement Recommendation

Recommendation: Conditional cooperation recommended.

Shandong Sinocoroplast Packing Co., Ltd. has a solid supplier foundation, supported by a 21,000+㎡ factory area, 150+ staff, verified supplier status, 14 years as an Gold Supplier, and Trade Assurance availability. The company appears suitable for buyers sourcing customized PP corrugated plastic products, especially low-MOQ items such as signs, covers, storage products, and related printed corrugated plastic applications.

However, the main risk is delivery reliability. The on-time delivery rate of 55.8% is materially weak and should be treated as a key procurement control point. Buyers with strict event dates, promotional deadlines, retail launch schedules, or time-sensitive project requirements should proceed cautiously.

Suitable customer types include: - Buyers seeking low-MOQ customized PP corrugated plastic products
- Importers or distributors that can accept longer buffer periods
- Project buyers who can confirm production and shipping milestones in advance
- Buyers who prefer Trade Assurance protection

Key risk points: - Low on-time delivery rate
- Limited review count despite high rating
- Insufficient data on Finished Product Inspection
- Insufficient data on detailed factory audit reports or product certifications

Growth potential exists due to the supplier’s long platform history, verified status, factory scale, and moderate recent transaction activity. If delivery performance improves and more quality assurance documentation becomes available, the supplier’s procurement attractiveness would increase significantly.