A report revealed that Lonmin transferred R1.2bn to Bermuda in the wake of the Marikana tragedy.
Dali Mpofu will launch an application to have Mr X testify in person at the Marikana commission.
Adv. Dali Mpofu, acting on behalf of the miners, argued cops turned a blind eye to the wounded men.
Police raided hostels ahead of Friday's anniversary of the Marikana tragedy last year.
It is not yet clear whether Amcu will abort its planned strike at Lonmin.
A Lonmin employee was shot dead on the platinum belt over the weekend.