What personal data we hold, why we hold it, and what you can do about it.
Composite Xchange Ltd is the data controller for the personal data described in this policy. We are registered in England and Wales, company number 17531295, registered office 31 West St, Swadlincote, DE11 9DN.
Questions about privacy or data protection: hello@compositexchange.com.
This policy is written for UK data protection law — the UK GDPR and the Data Protection Act 2018.
Composite Xchange is a business-to-business marketplace, so most of what we hold is about companies. Some of it is still personal data, because it identifies the people who work for them.
| What for | Lawful basis |
|---|---|
| Creating and running your account | Performance of a contract |
| Processing orders, payments and payouts | Performance of a contract |
| Showing listings and messages to other users | Performance of a contract |
| Verifying sellers and preventing fraud | Legitimate interests — keeping the marketplace trustworthy; and legal obligation where anti-money-laundering rules apply to our payment provider |
| Checking that listings and shipping charges comply with our terms | Legitimate interests — protecting users and our revenue |
| Responding to enquiries | Legitimate interests — answering people who contact us |
| Compiling diverted-weight figures for sellers | Legitimate interests — providing a service sellers have asked for |
| Marketing emails to businesses | Legitimate interests, where permitted by PECR; consent where the recipient is a sole trader or partnership |
| Keeping accounting and tax records | Legal obligation |
Where we rely on legitimate interests, we have considered whether our interest is outweighed by your rights. You can ask us for details of that assessment, and you can object — see Your rights.
Anonymity is a deliberate feature of this marketplace, so it is worth being precise about it.
We do not sell personal data. We share it with:
If the business is sold or restructured, personal data may transfer to the new owner, who would be bound by this policy.
Some of our suppliers process data outside the UK. Where they do, the transfer is covered by UK adequacy regulations or by an International Data Transfer Agreement or the UK Addendum to the EU Standard Contractual Clauses.
| What | How long |
|---|---|
| Account details | While your account is open, then 12 months |
| Transaction and payment records | 7 years, for tax and accounting |
| Messages and listings | 3 years after the transaction, or after the listing closes |
| Enquiry and contact form submissions | 2 years |
| Marketing contacts | Until you opt out, then a suppression record indefinitely so we don't contact you again |
Accounts are protected by passwords you control. Payment and identity data is handled by Stripe, a regulated payment institution, and does not pass through our systems. Access to the Console that runs the marketplace is limited to those who need it.
No system is completely secure. If a breach occurs that is likely to risk your rights and freedoms, we will report it to the ICO within 72 hours and tell you where required.
This website uses only cookies that are strictly necessary for it to work. We do not currently run analytics or advertising cookies on it.
The marketplace itself uses cookies necessary for signing in and keeping your session. If we add analytics or any non-essential cookie, we will ask for your consent first and update this policy.
Under UK data protection law you can ask us to:
You can object to direct marketing at any time and we will stop, without exception.
To exercise any of these, email hello@compositexchange.com. We will respond within one month. There is no charge unless a request is manifestly unfounded or excessive.
Some rights are limited. We cannot delete transaction records we are legally required to keep, and we cannot remove a seller's identity data from Stripe's records while regulatory obligations apply to it.
If you are unhappy with how we have handled your data, please tell us first so we can put it right.
You can also complain to the Information Commissioner's Office, the UK regulator, at ico.org.uk/make-a-complaint or on 0303 123 1113.
We will publish any changes here with a new version number and date. Where a change materially affects you, we will tell registered users by email.
Composite Xchange Ltd
31 West St, Swadlincote, DE11 9DN, United Kingdom
hello@compositexchange.com