Praise be to Allah the Lord of the Worlds.
After reviewing the suggested article and the system of the staff provident fund, it was made clear that the fund saves subscriptions and uses them in business, then divides the annual profits amongst the employees/subscribers. We see no harm in adding the above condition to the system of the staff provident fund of your company to achieve justice amongst the subscribers through which each collects profits based on the actual amounts that he has contributed to the fund. And Allah the Almighty knows best.