However, the major nickel ore producers globally are:
* Indonesia: A significant producer, known for its lateritic nickel deposits.
* Philippines: Another major producer, also with abundant lateritic nickel deposits.
* Australia: A leading producer, with both lateritic and sulphide deposits.
* Russia: A significant producer, with substantial sulphide deposits.
* Canada: A major producer, primarily of sulphide deposits.
* Brazil: A growing producer, with substantial lateritic deposits.
* Cuba: A significant producer, known for its lateritic nickel deposits.
It's likely that 25% of the nickel ore mined comes from a combination of these countries.
To get a precise answer, you would need to consult specific data from mining companies and international organizations like the International Nickel Study Group (INSG) or the United States Geological Survey (USGS).