Customer concentration
Two customers contributed nearly all revenue in recent periods, so losing one would materially reduce sales.
- Scope
- Shanghai Xinsen and Shanghai Huaxin
- Materiality
- High
Rubber Leaf Inc
Rubber Leaf Inc is a U.S.-incorporated company whose operating business is conducted through Rubber Leaf Sealing Products (Zhejiang) Co., Ltd. in Ningbo, China. It makes and sells automotive rubber and plastic sealing strips used in vehicle sealing, vibration reduction, and sound insulation applications, serving automotive OEMs and tier-one suppliers.
16,2 %
58,5 %
−29,2 %
0.57
0.45
| % | |
|---|---|
| Automotive sealing strips | 70% Rubber and plastic sealing strips used in vehicle doors, windows, and body sealing applications. |
| Direct OEM supply | 20% Finished sealing products sold directly to automakers after inspection and acceptance. |
| OEM processing services | 5% Contract manufacturing services where customers supply materials and pay a processing fee. |
| Indirect supply / distribution | 5% Orders fulfilled through related-party or third-party distribution and subcontracting channels. |
The company sells primarily into the automotive supply chain, with customers including OEMs and first-tier suppliers...
- Automotive OEMsprimary
Buy finished sealing strips directly for vehicle assembly and accept delivery after inspection.
- First-tier automotive suppliersprimary
Source sealing products for onward supply to automakers and platform programs.
- Related-party distributorsprimary
Channel orders through Shanghai Xinsen and similar entities to support sales continuity.
- OEM processing customerssecondary
Provide raw materials and pay processing fees for contract manufacturing services.
Rubber Leaf is a U.S.-incorporated company, but its operating subsidiary and manufacturing base are in Fenghua, Ningbo,...
- •U.S. parent company incorporated in Nevada
- •All operating activity is conducted through the China subsidiary
- •Manufacturing and principal business address are in Ningbo, Zhejiang
- •Customer and supplier relationships are concentrated in China
- •Exposure to PRC legal, labor, and logistics conditions is material
The company’s operating model centers on maintaining first-tier supplier status with automakers and expanding direct...
01
Deepen OEM and tier-one customer relationshipsmedium-term
Direct supply relationships can improve order stability and reduce channel dependence.
02
Broaden customer base beyond concentrated accountsshort-term
Revenue is highly concentrated, so diversification is needed to reduce customer-loss risk.
03
Maintain access to working capital and bank facilitiesshort-term
Manufacturing and procurement require liquidity to fund raw materials and operations.
The business is exposed to extreme customer and supplier concentration, with a small number of counterparties...
Supplier concentration
Raw materials have been sourced from one or very few vendors, creating procurement and continuity risk.
- Scope
- Shanghai Haozong and Yongliansen
- Materiality
- High
Related-party dependence
Key customers and suppliers are related to management or insiders, increasing conflict and continuity risk.
- Scope
- Founder and director-linked counterparties
- Materiality
- High
PRC operating and legal risk
Operations, assets, and counterparties are in China, so local legal and regulatory issues can disrupt business.
- Scope
- Mainland China
- Materiality
- High
Automotive industry competition
The sealing-products market is crowded and qualification-driven, making it hard to win and retain programs.
- Scope
- Automotive sealing products market
- Materiality
- Medium
Revenue recognition by model
Affects timing of revenue and gross profit recognition
Inventory and defect reserves
Can move reported margins materially period to period
Related-party balances
Affects receivables, payables, and transaction transparency
Going-concern assessment
Can influence classification, disclosure, and investor perception
: 29.4.2026