Privacy

Privacy notice

This notice explains what personal data Vantis Project Intelligence Ltd ("we") handles through petroslate.com and the PetroSlate app, and your rights under UK data protection law (the UK GDPR and the Data Protection Act 2018). We are the controller for the data described here.

This website

  • We set no cookies and use no analytics, advertising or tracking tools.
  • If you switch between light and dark mode, the choice is kept in your browser's local storage (rlp.theme, shared with the app) and is never sent to us.
  • Fonts and scripts are served from our own site, not from third parties.
  • Our hosting provider (currently Vercel Inc.) processes technical data, such as your IP address and the pages requested, to deliver the site and keep it secure. We do not use this data to identify or profile you. Vercel may process it outside the UK under its own safeguards for international transfers.

When you email us

If you email access@petroslate.com, for example to ask about a trial, we receive your name, email address, and whatever you choose to tell us. We use it to reply, to run the trial and design partner programmes, and to keep a record of our conversation. The lawful basis is our legitimate interest in answering enquiries, or taking steps at your request before a contract. We keep this correspondence for as long as the conversation is active and for up to 24 months after our last contact, unless we then have a contract with you or you ask us to delete it sooner. We do not sell it or use it for marketing lists.

The PetroSlate app

PetroSlate runs on your own machine, in your browser or as a desktop app. Your refinery models, assays, prices and results are stored on your device and in the files you save. We do not receive them: the core features (building, solving and explaining plans) need no server. The web app at petroslate.com/app/ is protected by a password; the check happens at our hosting provider.

Some optional features do connect to others. Each is off until you turn it on or use it:

  • AI assistant. If you choose a cloud AI provider (for example Anthropic or OpenAI) with your own API key, the app sends requests directly from your machine to that provider: the assistant's instructions, your conversation, and compact summaries the assistant asks for (unit and stream names, capacities, specs and solve summaries; not your whole model file, your assays or your change history). We do not receive or store them; the provider's own terms and privacy policy apply. With a local model (Ollama or llama.cpp) nothing leaves your machine or site network. With AI off, nothing is sent.
  • Licence activation. If you activate a licence online, the licence key and a name for this computer are sent to our payment provider to check the key.
  • Desktop updates. The desktop app can check a public download location for new versions, which reveals your IP address to that host. You can turn update checks off.
  • Team server. If your organisation runs its own PetroSlate team server, models you share go to that server, which your organisation controls.

Your rights

You can ask for a copy of the personal data we hold about you, and ask us to correct it, delete it, restrict or object to its use, or transfer it. Email access@petroslate.com. We will reply within one month. If you are unhappy with how we handle your data, you can complain to the Information Commissioner's Office (ico.org.uk).

Changes

We will update this notice when what we do changes, and show the date of the latest version here once it has been reviewed.