Our mine takes all complaints and incidents seriously. Please see the following register. Complaints Register Complaints and Incidents Register 2025 - Mannering Colliery Complaints and Incidents Register 2016 Complaints and Incidents Register 2017 Complaints and Incidents Register 2018 Complaints and Incidents Register 2019 - Chain Valley Complaints and Incidents Register 2019 - Mannering Complaints and Incidents Register 2020 - Chain Valley Complaints and Incidents Register 2020 - Mannering Complaints and Incidents Register 2021 - Chain Valley Complaints and Incidents Register 2021 - Mannering Colliery Page1 2 Next