Welcome
Settings
Policy
Cookies
We use cookies to give you the best online experience. Strictly necessary cookies are on by default. Additional cookies are off by default. You can choose which of these additional cookies to allow by enabling them on our settings tab.
All the data we collect is anonymous, in accordance with the GDPR.
Your cookie preferences will be stored for one year, but you can modify your preferences at any time by clicking on ‘Cookies’ in our footer.
Analytics
These cookies track what pages are visited on our website, to help us monitor and improve our content.
Cookies
We use cookies from:
- Google Analytics
- Zoom Info
Media
We embed videos and other media hosted by third parties. Cookies help us keep track of what videos are being watched, and allow those third parties to serve you related content on their own sites. The videos will still work if you do not accept cookies.
Cookies
We use cookies from:
- YouTube
- Vimeo
Other
Miscellaneous cookies – currently none from third parties.
Cookies
On some pages we may ask you to submit a form to access content. We would then store a cookie to remember that you had submitted the form.
Essential
These cookies track what pages are visited on our website, to help us monitor and improve our content.
Cookies
We use:
- A cookie to remember your cookie preferences for one year
- A cookie to allow logged-in users to access our paywalled content
(a) Introduction
Onyx Capital Group Limited and its group companies (“we”, “us”, “our”, or collectively “Onyx Capital Group”) may use cookies, web beacons, tracking pixels, and other tracking technologies when you visit our websites, including www.onyxcapitalgroup.com and any other websites, sub‑domains, media forms, media channels, mobile websites, or mobile applications operated by an Onyx Capital Group company (collectively, the “Site”), to help customise the Site and improve your experience.
Each Onyx Capital Group company that operates a specific Site acts as the data controller for personal data collected through that Site.
Any changes we make to this policy will be posted on this page and, where appropriate, notified to you by e-mail. You are encouraged to periodically review this Cookie Policy to stay informed of updates. You will be deemed to have been made aware of, will be subject to, and will be deemed to have accepted the changes in any revised Cookie Policy by your continued use of the Site after the date such revised Cookie Policy is posted.
(b) Use of Cookies
A “cookie” is a string of information which assigns you a unique identifier that we store on your computer. Your browser then provides that unique identifier to us each time you submit a query to the Site. We use cookies on the Site to, among other things, keep track of services you have used, record registration information, record your user preferences, keep you logged into the Site, facilitate purchase procedures, and track the pages you visit. Cookies help us understand how the Site is being used and improve your user experience.
(c) Types of Cookies
The following types of cookies may be used when you visit the Site:
Advertising Cookies
Advertising cookies are placed on your computer by advertisers and ad servers in order to display advertisements that are most likely to be of interest to you. These cookies allow advertisers and ad servers to gather information about your visits to the Site and other websites, alternate the ads sent to a specific computer, and track how often an ad has been viewed and by whom. These cookies are linked to a computer and do not gather any personal information about you.
Analytics Cookies
Analytics cookies monitor how users reached the Site, and how they interact with and move around once on the Site. These cookies let us know what features on the Site are working the best and what features on the Site can be improved.
Our Cookies
Our cookies are “first-party cookies” and can be either permanent or temporary. These are necessary cookies, without which the Site won’t work properly or be able to provide certain features and functionalities. Some of these may be manually disabled in your browser but may affect the functionality of the Site.
Personalization Cookies
Personalization cookies are used to recognize repeat visitors to the Site. We use these cookies to record your browsing history, the pages you have visited, and your settings and preferences each time you visit the Site.
Security Cookies
Security cookies help identify and prevent security risks. We use these cookies to authenticate users and protect user data from unauthorized parties.
Site Management Cookies
Site management cookies are used to maintain your identity or session on the Site so that you are not logged off unexpectedly, and any information you enter is retained from page to page. These cookies cannot be turned off individually, but you can disable all cookies in your browser.
Third-Party Cookies
Third-party cookies may be placed on your computer when you visit the Site by companies that run certain services we offer. These cookies allow the third parties to gather and track certain information about you. These cookies can be manually disabled in your browser.
(d) Control of Cookies
Before cookies are placed on your computer or device, you will be shown a pop up requesting your consent to set those cookies. By giving your consent to the placing of cookies you are enabling us to provide the best possible experience and service to you. You may, if you wish, deny consent to the placing of cookies unless those cookies are strictly necessary; however certain features of our website may not function fully or as intended. You will be given the opportunity to allow and/or deny different categories of cookies that we use. You can return to your cookie preferences to review and/or change them at any time by adjusting your cookie settings.
Most browsers are set to accept cookies by default. However, you can remove or reject cookies in your browser’s settings. Please be aware that such action could affect the availability and functionality of the Site.
For more information on how to control or reject cookies, visit the following links:
(e) Privacy Policy
For more information about how we use information collected by cookies and other tracking technologies, please refer to our Privacy Policy posted on the Site. This Cookie Policy is part of and is incorporated into our Privacy Policy. By using the Site and consenting (or not consenting) to the pop-up displayed when you first visit the site, you agree to be bound by this Cookie Policy and our Privacy Policy.
(f) Contact us
If you have any questions or concerns about this policy, please contact our Data Protection Officer by emailing: compliance@onyxcapitalgroup.com.
Bio-Leaching
Bio-leaching is a process that uses naturally occurring microorganisms, such as bacteria and archaea, to extract metals from ores, concentrates, or waste materials. These microorganisms break down mineral compounds through biological and chemical reactions, allowing valuable metals such as copper, nickel, cobalt, zinc, and gold to be recovered in solution for further processing.
The process is commonly used in mining and metallurgical industries as an alternative to conventional extraction methods that rely on high temperatures, pressure, or intensive chemical treatment. Bio-leaching is particularly effective for low-grade ores and mining waste that may not be economically viable using traditional techniques. The microorganisms involved typically obtain energy by oxidising sulphide minerals, which releases the target metals from the surrounding rock.
Bio-leaching is often considered a more environmentally sustainable extraction method because it can reduce energy consumption, lower greenhouse gas emissions, and minimise the use of harsh chemicals compared with conventional smelting and refining processes. However, the process is generally slower than traditional extraction methods and requires careful control of operating conditions such as temperature, acidity, oxygen levels, and microbial activity.
In recent years, bio-leaching has gained increasing attention as part of the transition to critical minerals and battery metals supply chains, particularly for the recovery of metals used in renewable energy technologies, electric vehicles, and energy storage systems.