Grievance mechanisms are not stated.
pg. 1
"NBEL has a dedicated whistleblowing policy, which is available to staff."
...
"To this end, NBEL is developing a suite of key performance indicators, which measures our effectiveness against the prevention of modern slavery practices within our operations and supply chain. These will largely focus on the effectiveness of training to staff, the due diligence of our third parties and the efficiency of staff being able to report and escalate issues identified."