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China
Songjiagou Mine (Songjiagou Operation)

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 Location:
37 km S from Yantai, China

  Address:
Qiansongjiao Village, Wanggezhuang Town, Muping District
Yantai City, Shandong Province
China
264106
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2032
August 12, 2021 / Majestic Gold Corp. ("Majestic" or the "Company") (TSXV:MJS)(FSE:MJT) is pleased to announce that its operating subsidiary, Yantai Zhongjia Mining Co. Ltd., has received governmental approval to resume mining operations at its Songjiagou Gold Open Pit Mine following the successful completion of the governmental cautionary safety inspection.

The Company had announced on March 1, 2021, with further updates provided in April 2021 and May 2021, that the Shandong Provincial Government had mandated closure of all non-coal operations in the province pending governmental cautionary safety inspections.


Owners

Source: p. 4
CompanyInterestOwnership
Yantai Dahedong Processing Co. Ltd. (operator) 25 % Indirect
Majestic Gold Corp. 75 % Indirect
Majestic holds its 75% interest in SJG Project through its 94% owned subsidiary SINOGOLD Resources Holdings Group Co. Ltd. (“SINOGOLD”) indirectly. The remaining 25% of SJG Project is held by Yantai Dahedong Processing Co. Ltd.

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • Mesothermal
  • Vein / narrow vein


Summary:

The eastern Shandong (“Jiaodong”) gold district is divided from west to east into the Zhaoyuan- Yexian, Qixia, and Muping-Rushan gold belts. The Songjiagou Property is located within the MupingRushan gold belt situated in the eastern part of the Jiaobei Terrane, which contains about 20% of the gold reserves of the Shandong Peninsula. Gold mineralization is characterized as either vein-filling or as disseminated structures/stockwork.

Project area. A ductile shear zone and ductile brittle fault zone are major geological structures in the area. Major magmatic activity is represented by monzonite granite. Other veins include diabase, diorite, hornblende porphyrite, and lamprophyre.

Palaeoproterozoic metamorphic rocks of the Jingshan Group are mainly distributed to the north of the Project area near Tanjia village, and are comprised of biotite granulite, graphite-bearing gneiss, leucogranulite, and marble. These strata generally dip southeast with angles varying from 15° to 50°.

Cretaceous-age rocks are predominately represented by the Lisishan Formation, part of the Laiyang Group and comprised of conglomerate and sandstone. The Lisishan Formation in the Project area has an overall northeast strike and dips southeast with an angle of 20° to 40°. The formation is dividable into two conformably contacted sections according to the clast size. The first section of Lisishan Formation consists of relatively larger clasts with grain sizes of about 3 cm – ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Songjiagou mine is currently in production from the Open Pit.

Mining inventory is loaded by excavator and then transported to the processing plant by truck.

In order to effectively control the grade and match excavator capacities, block sizes in the resource model were set at 10 m × 10 m × 5 m. Two benches were combined into one during optimization, and the final bench heihgt is 10 m.


Crushing and Grinding
Flow Sheet: Source

Primary Crushing
Haul trucks deliver the mining inventory from the open pit to the primary crushing workshop for grid screening, the underflow of which is sent to the mining inventory bin. Inventory with particle sizes less than 500 mm are fed to the jaw crusher by a heavy apron feeder, and the jaw crusher’s discharge is subjected to secondary crushing.

Secondary/Tertiary Crushing
A vibrating feeder feeds the primary crushing product to the cone crusher for secondary crushing. The crusher’s discharge is delivered to the vibrating screen for classification.

The screen oversize is conveyed to the cone crusher for tertiary crushing, and its discharge is conveyed back to the vibrating screen for classification. Particles passing the screen (-20 mm) are sent to the fine ore bin.

Grinding
The fine ore (-20 mm) is conveyed by the belt feeders to the ball mills. Each ball mill and its respective spiral classifier form a closed circuit for grinding. Ball mill discharge is classified by a spiral classifier. The continuously revolving spirals carry the settled sands up and discharge the sands into the mill feed chute. Overflow from the classifier flows to the flotation conditioning tank.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2021202020192018201720162015
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required28,84325,36322,97519,488
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required1,414,313 t1,416,683 t1,509,566 t1,662,583 t
Tonnes milled  ......  Subscription required  ......  Subscription required1,226,231 t1,467,628 t1,578,261 t1,619,876 t
Daily milling capacity  ......  Subscription required  ......  Subscription required6,000 t
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Reserves at January 19, 2016:
The resource Cut-off grade is 0.30 g/t Au.

CategoryTonnage CommodityGrade
Indicated 26.6 Mt Gold 1.4 g/t
Inferred 23.4 Mt Gold 1.45 g/t

Commodity Production Costs:

CommodityUnits201720162015
Total cash costs (sold) Gold USD 723 / oz   1,014 / oz   1,210 / oz  
All-in sustaining costs (sold) Gold USD 850 / oz   1,174 / oz   1,411 / oz  

Financials:

Units20172016
Capital expenditures M USD 14.9   3.7  
Revenue M USD 29.5   27.8  
Gross profit M USD 9.6   1.7  
After-tax Income M USD 3.7   -3.3  
EBITDA M USD 10.1   -1.9  



Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Management Discussion & Analysis 2018
Financial Review 2017
Management Discussion & Analysis 2017
Management Discussion & Analysis 2016
Technical Report 2016
Management Discussion & Analysis 2015
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