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RECAST PROJECT REPORT FOR TAWA-III U/G MINE EXECUTIVE · PDF file Presently Tawa-II U/G Mine...

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  • RECAST PROJECT REPORT FOR TAWA-III U/G MINE (MARCH 2018) CMPDI

    Job No. 4101874 Page - 1 Executive Summary

    RECAST PROJECT REPORT FOR TAWA-III U/G MINE

    EXECUTIVE SUMMARY

    1.0 INTRODUCTION 1.1 HISTORY OF MINING

    The exploration in Tawa Extension Geological block was started in July’90 in the north eastern side of Tawa River. Project Report for Tawa-II U/G Mine was prepared by CMPDI, RI-IV, Nagpur in 1995 in part area of Tawa Extension Geological Block. However, this report was kept in abeyance as per the decision taken by WCL Board in its 158th meeting held on 11.03.2000. Meanwhile, exploration in Tawa Extension Block continued upto July 1997 and Geological Report for Tawa Extension Block was prepared by CMPDI, RI- IV, Nagpur in December 1999.

    Subsequently, P.R. for Tawa-II U/G Mine (Recast) was prepared by CMPDI, Nagpur in November 2003 and was approved by WCL Board in 181st meeting held on 17.03.2004 for a capital investment of Rs. 36.43 crores including WDV of existing assets of Rs. 4.4464 crores and for a target capacity of 0.39 Mty. Presently Tawa-II U/G Mine is an operating mine which has started production from 2006-07 and it had produced 0.48048 Mty in year 2016-17.

    The total area of Tawa Extension Geological Block has been divided into 10 sectors on the basis of faults of different magnitudes and these sectors are IA, IB, IC, II, IIIA, IIIB, IVA, IVB, IVC and IVD. Out of these ten sectors of Tawa Extension Geological Block, five sectors namely IIIB, IVA, IVB, IVC and IVD lying on the north side of Fault F3 - F3 and Dyke are not included in the Mine Boundary of existing Tawa-II U/G Mine.

    1.2 JUSTIFICATION FOR PREPARATION OF PROJECT REPORT

    Some of the underground mines of Pathakhera Area namely Pathakhera U/G Mine-1, Pathakhera U/G Mine-2, Satpura U/G Mine etc are closed due to complete exhaustion of coal reserves of these mines. To meet the demand of coal for Pithead Satpura Thermal Power Station, it has become essential to enhance the production either by opening of new mines or by expansion of existing underground mines in Pathakhera Area. Moreover, the manpower of the already closed or closing underground mines will have to be deployed elsewhere for their gainful utilization.

    Subsequently, WCL vide letter no. WCL/C-1 (E)/GM(P&P)/09/1084 dtd. 09.10.2009 requested RI-IV, CMPDIL to take up the preparation of Project Report for Tawa-III U/G Mine in the explored block, adjacent to the existing boundary of Tawa-II U/G Mine by underground mining.

  • RECAST PROJECT REPORT FOR TAWA-III U/G MINE (MARCH 2018) CMPDI

    Job No. 4101874 Page - 2 Executive Summary

    Hence, it was decided to open Tawa-III U/G Mine to reduce the gap of demand and supply of coal from Pathakhera Area and for gainful utilization of surplus manpower from the closing underground mines of the Pathakhera Area. Accordingly, Draft Project Report for Tawa-III U/G Mine was planned to work the remaining sectors of Tawa Extension Geological Block lying on the north side of Fault F3- F3 and Dyke (Virgin Patch) which were not included in existing Tawa-II U/G Mine. The Draft Project Report for Tawa-III U/G Mine was prepared in February 2010 and was presented at CMPDI (HQ), Ranchi on 14.03.2010 for obtaining guidance before finalization of the report. CMPDI (HQ) mainly suggested the following changes to be made in the Final P.R.

    1. To increase the target capacity from planned target of 0.36 Mty (1200

    tpd) in the Draft P.R. to 0.48 Mty (1600 tpd) in the Final P.R by deploying 8 LHDs in 3 panels (2 Strike Panels and 1 Main Dip Panel).

    2. It was decided in the meeting to plan the mine with 7 headings panel

    with 3 LHDs and 3 UDMs in each panel.

    3. It was also decided to plan the cross-section of proposed inclines as 5.5m x 3.5m and the diameter of proposed airshaft as 5.5m.

    The Planning Committee Meeting for the Draft Project Report for Tawa-III U/G Mine was held at WCL (HQ) on 31.03.2010. After detailed discussions in WCL (HQ), Planning Committee of WCL agreed to increase the Target Capacity from 0.36 Mty to 0.48 Mty with 7 headings in each panel.

    Based on the suggestions received from CMPDI (HQ) and WCL (HQ), Final Project Report for Tawa-III U/G Mine, Pathakhera Area, WCL was prepared and submitted to WCL by RI-IV, CMPDI in May 2010, which envisaged only Departmental Option with a target capacity of 0.48 Mty operating 8 Nos. of LHDs in 3 panels.

    The Financial Analysis of Project Report for Tawa-III U/G Mine suggested that the Project was yielding a negative IRR at 100% and 85% Target Capacity. In view of the above, the Project was recommended for approval, subject to a viable Fuel Supply Agreement with a Customer on Cost Plus Basis.

    1.3 APPROVAL OF PROJECT REPORT BY COMPETENT AUTHORITY

    The above report was placed before T.S.C. of WCL Board in the Board Room of WCL (HQ), Nagpur. As per the directions of Technical Sub-Committee, the Project Report for Tawa-III U/G Mine was submitted to WCL Board.

  • RECAST PROJECT REPORT FOR TAWA-III U/G MINE (MARCH 2018) CMPDI

    Job No. 4101874 Page - 3 Executive Summary

    After detailed deliberations, WCL Board in its 227th meeting held on 22.10.2010 accorded approval for the following

    1. 1st stage approval (i.e., for the purpose of Environment & Forestry

    Clearances) of the Project Report of Tawa-III U/G Mine of Pathakhera Area having a capacity of 0.48 Mty with an estimated capital investment of Rs. 105.6926 crores on Departmental Option.

    2. Entering into Coal Supply Agreement with prospective customer on

    Cost Plus Basis to yield 12% IRR at 85% target capacity.

    3. Capacity of 0.60 Mty (Peak Production) for the purpose of obtaining EMP Clearance.

    As regards requisite capital investments involved for taking advance action for acquisition of land, drivage of incline etc. are under 2nd stage approval, the Board directed that CIL be approached to review the preconditions of CIL Board, stating the practical problems being faced by WCL as some essential expenditures are required to be incurred for mine development activities and depositing Net Present Value (NPV) of Forest Land.

    1.4 PREPARATION OF RECAST PROJECT REPORT FOR TAWA-III U/G MINE

    (SEPTEMBER 2014) Area General Manager, Pathakhera Area, WCL vide letter no. WCL/MP/Patha/Survey/2011/778 dtd. 27.05.2011 addressed to Regional Director, RI-IV, CMPDIL, informed that the site of inclines and infrastructure proposed in the Approved Project Report for Tawa-III U/G Mine was in Forest Area and there will be lot of problems in acquiring Forest Land and hence it was requested to have a re-thinking in the planned site of inclines and surface mine infrastructure.

    A joint team of officers of CMPDI, RI-IV and Pathakhera Area, had inspected the approach to the new site of inclines proposed by Pathakhera Area on 16.06.2011 and finalized the new site. In the meeting held at Pathakhera Area with Area Officials, it was also proposed to sink the Return Airshaft from Surface upto Lower Workable Seam only and two Staple Pits would be proposed, one from L.W.S. to Bagdona Seam and the other from Bagdona Seam to IA Seam for ventilation purposes. Since the Project Report for Tawa-III U/G Mine was approved on Cost Plus Basis, the above changes (i.e., Change in Site of Inclines and Airshaft, sinking of Airshaft upto L.W.S. only, proposal to include two staple pits as mentioned above (one from L.W.S. to Bagdona Seam and other from Bagdona Seam to IA Seam), change of position of Main Trunk Roadways and Change in layout of proposed panels, re-assessment of extractable reserves, change in liquidation plan, change of sale price based on GCV etc) are required to be considered while updating the project report.

    Meanwhile General Manager (P&P), WCL vide letter no.

  • RECAST PROJECT REPORT FOR TAWA-III U/G MINE (MARCH 2018) CMPDI

    Job No. 4101874 Page - 4 Executive Summary

    WCL/GM(P&P)/2013/330 dated 01.04.2013 requested CMPDI, RI-IV to update the Project Report for Tawa-III U/G Mine. The preparation / updation of Project Report for Tawa-III U/G Mine was kept in the Annual Plan of 2014 - 15 by WCL.

    The Recast Project Report for Tawa-III U/G Mine was prepared and submitted to WCL in September 2014 after incorporating the suggestions of both WCL (HQ) and changes as suggested by the officials of Pathakhera Area, WCL. The Financial Analysis of Recast Project Report for Tawa-III U/G Mine prepared in September 2014 also suggested that the Project was yielding a negative IRR at 100% and 85% Target Capacity.

    1.5 UPDATION / PREPARATION OF RECAST PROJECT REPORT FOR TAWA

    - III U/G MINE (JUNE 2016) Since no cost plus customer could be identified for Tawa-III U/G Mine, WCL desired that updation of the Project Report of Tawa-III U/G Mine to be taken up again considering the revised norms of project report preparation approved by CIL in its 317th CIL Board meeting held on 13.07.2015 and revised sale price of coal as on May 2016. A meeting was held in the chamber of Director (T) (P&P), WCL on 03.02.2016 to prepare Recast Project Report for Sharda U/G Mine with some changes to reduce the cost of production. A meeting was also held with the officials of P&P Department of WCL and CMPDIL, RI-IV, N

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