Get in touch
Real humans, quick answers. We reply within 24 hours, seven days a week.
Customer care
Orders, shipping, returns, product questions, warranty claims:
Include your order number when you have one — it helps us help you faster.
Payments you will see at checkout
Company
Martholm is operated by
义乌雄川贸易有限公司
Yiwu Xiongchuan Trading Co., Ltd.
浙江省义乌市陆港电商小镇7号楼701-702
Room 701-702, Building 7, Lugang E-commerce Town, Yiwu, Zhejiang, China
Business enquiries and wholesale: support@martholm.com
Verification & compliance
We are happy to be checked: our business licence, company registration
documents and the independent laboratory test reports behind our
material-safety claims are available on request — write to
support@martholm.com and we send them within
2 business days. Product-safety documentation is also
published on our Materials & Safety page.
Before you write
Many questions are answered on our Shipping & ReturnsMaterials & Safety page, including 100-day trial details and warranty terms.