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Consolidated Zinc Limited (ASX: CZL) has a 90% interest in the Plomosas mine, one of the... Consolidated Zinc Limited (ASX: CZL) has a 90% interest in the Plomosas mine, one of the world’s highest grade, low cost zinc mines in Chihuahua, Mexico.More

Corporate Spotlight

Consolidated Zinc Limited (ASX: CZL) has a 90% interest in the Plomosas mine, one of the world’s highest grade, low cost zinc mines in Chihuahua, Mexico.
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Brad Marwood on The Market Herald Dealroom - Sep


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Brad Marwood, Consolidated Zinc on The Market Herald Dealroom - September 2020


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ASX Announcement 23 December 2019 

  • Infill drilling of high grade SOX mineralisation to upgrade JORC Resource for commencement of mining 
  • Drilling to test mineralisation intersected in hole LV5040 returned 4.50m at 36.50% Zn, 0.76% Pb, 9.27 g/t Ag. 
  • Resource definition drilling at depth and along strike to existing JORC Resource

Consolidated Zinc Limited (ASX: CZL or “the Company”) is pleased to announce that exploration and delineation drilling has recommenced at its Plomosas project. 

Semi-Oxide Ore (SOX) 

A six hole program has commenced drilling with the objective to extend the Indicated JORC Resource (Resource) envelope down dip and to the south. These holes are targeted within the existing Inferred Resource envelope and will infill the identified mineralisation.

Drilling aims to convert SOX Inferred category Resources to Indicated Resources in preparation for mine planning and commencement of mining. This drilling will be complemented with ore strike drive sampling along the 913mRL, 900mRL and the 907mRL ore strike drives. These samples will effectively cover the defined mineralisation in the central zone. Figures 930L one and two, shows the location of these samples and drilling traces of previous drill holes as previously reported to the ASX. 

Drill intersections near to the extension and previously reported to the ASX on 21 March 2016 include: 

  • LV7DD003; 2.90m @ 34.52% Zn, 14.95% Pb, 90.0 g/t Ag from 50.6 metres down hole (“mdh”) and 0.95m @ 29.10% Zn, 11.50% Pb, 61.3 g/t Ag from 56.9 mdh; and 
  • LV7DD007; 2.65m @ 18.42% Zn, 10.12% Pb, 60.8 g/t Ag from 71.60 mdh

Details of the previous drilling results were announced to the ASX for hole LV5040 on 14 February 2018 and on 5 April 2018 for hole LV5054 and include respectively: 

  • LV5040; 4.50m @ 36.50% Zn, 0.76% Pb, 9.27g/t Ag from 164.05 mdh and 1.0m @ 35.01% Zn, 0.97% Pb, 7.00g/t Ag from 176.05 mdh; and 
  • LV5054; 3.1m @ 18.80% Zn, 1.25% Pb, 13.22g/t Ag from 149.45 mdh.

These holes intersected the deepest known economic mineralisation in Plomosas to date. The current drilling program is designed to also upgrade the Resource to Indicated status and add significant value to the project.

Drilling updates will be announced as results come to hand. 

Click here to view the full announcement


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Plomosas Operations Update SEPTEMBER 2019 

ASX Announcement 8 October 2019 

  • 1,363 tonnes of ore mined, down from 2,794 tonnes in August as the Company processed the significant ore stockpile 
  • 3,607 DMT of ore processed, with processed grades of 10.4% Zinc, 7.5% Lead and 32 g/t Silver 
  • Upgraded Aldama plant processed up to 266 tonnes per day during September 
  • Ore stockpile of 4,757 tonnes available for processing through the Aldama facility 
  • Zinc and lead concentrates produced are being sold to local smelters and customers within Mexico

Consolidated Zinc Limited (ASX: CZL or “the Company”) is pleased to provide an update on production at its Plomosas zinc-lead-silver mine in Mexico.

Ore mining 

Ore mining activities were reduced during September to manage the run of mine stockpile levels. Ore mining was stopped for a two-week period where the mining contractor completed major services of their equipment. 

On-ore decline development progressed below the 900mRL Sublevel with new access developed at the 888mRL sublevel along strike of the high-grade SOX ore and will be completed in the next few months. This sublevel will provide a return airway while mining the stopes from 875mRL (Level 9) and 921m RL Sublevel.

Ore Processing 

The third party Aldama Concentrator (“Aldama”) milled 3,607 tonnes during September, a 24% increase from that milled in August 2019. The plant operated above 200 tonnes per day for 5 of the last 11 days of September and continued to operate at over 170 tonnes per day into October. Plant availability was adversely affected by power outages due to a heavier than usual summer rain season and multiple lightning strikes which typically end towards the end of September. The State electricity authority restored power and CZL is costing the installation of backup generator sets that could reduce the lost time due to future power outages.

On the 26 September the plant processed 266 tonnes and during the period 20 – 27 September the plant averaged 220 tonnes per day production, with scheduled maintenance shutdowns on the last 3 days of the month limiting production.

Ore grades milled were 10.4% zinc, 7.5% lead and 32 g/t Silver, the ore selected has resulted in the production of high-quality clean concentrates free of any deleterious elements to smelting and refining.

Zinc and lead recoveries during September were negatively affected by the lower plant availability and a faulty pH sensor, with zinc recoveries to zinc concentrate of 56.7% in September.

All zinc and lead concentrates produced were sold to local smelters and customers during September. 

In total, 1,655 tonnes and 562 tonnes of zinc and lead concentrates respectively, were sold in the quarter with an additional 175 tonnes of zinc concentrate delivered and sold on 1 October 2019 which will be recognised as revenue in October 2019 in accordance with the IFRS accounting policies.

For and on behalf of Consolidated Zinc Limited.

Click here to view the full announcement


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Stephen Copulos Photo

CHAIRMAN – Mr Stephen Copulos

Mr Copulos has over 35 years of experience in a variety of businesses and investments in a wide range of industries, including manufacturing, mining, fast food, property development and hospitality. He has been the Managing Director of the Copulos Group of companies, a private investment group, since 1997. Mr Copulos is an active global investor who brings significant business acumen and greater diversity to the Board of Consolidated Zinc Limited. He has been a major shareholder of Consolidated Zinc for many years and is aligned to improving shareholder returns. Mr Copulos has over 20 years’ experience as a company director of both listed and unlisted public companies.

He is currently the Non-Executive Chairman of Big River Gold Limited and was a Non-Executive Director of Black Rock Mining Limited until October 2017, Collins Foods until October 2014, and Non-Executive Director of Restaurant Brands Limited in New Zealand Until April 2019.

Brad Marwood Photo 2

MANAGING DIRECTOR – Mr Bradley Marwood

Mr Marwood is a mining engineer and a highly experienced resources industry executive with more than 30 years of experience. He was instrumental in bringing into production the copper mines at Kipoi (DRC) and Rapu Rapu (Philippines); completing development of the Svartliden gold mine (Sweden) and has managed numerous Feasibility Studies and advanced stage resource projects in Australia, Africa, North America and Asia.

He has worked in senior roles for groups such as Normandy, Dragon Mining, Lafayette, Moto Goldmines and Perseus Mining before his most recent role as Managing Director of Tiger Resources. Mr Marwood’s involvement has seen growth in several companies with a significant increase in their market capitalisation and by protecting investments through restarting suspended mine projects.

Andrew Richards Photo B&W

EXECUTIVE DIRECTOR  – Mr Andrew Richards

Mr Richards is a geologist with more than 30 years of experience in the international mining industry which included company management and project finance. Since 2004 Mr Richards has worked extensively with gold, base metals, rare earths and industrial minerals in Australasia, Asia, Africa and South America. He has provided consultancy and advisory services, Independent Expert Reports and managed several listed and unlisted companies. He is and has been on the boards of several listed companies and was Managing Director and CEO of two ASX listed companies operating in China.

Angela Pankhurst


Ms Pankhurst (MAICD) has more than 15 years of experience as an executive and non-executive director primarily in the mining industry.  She has held senior executive and company secretarial roles for companies with projects in Kazakhstan, Nigeria, Vietnam and Australia.   She was Managing Director of Central Asia Resources Limited during the development of its first gold mine and processing facility. Ms Pankhurst is a non-executive director of PanTerra Gold Limited, director/company secretary of Imritec Limited and Managing Director of MerGen Biopharma Limited.

CFO & COMPANY SECRETARY – Mr Anthony Italiano

Mr Italiano is a Chartered Accountant with more than 15 years of corporate experience across senior finance roles in the resources sector. Mr Italiano has international experience in corporate governance, operations, financing, commodity marketing and trading, with extensive experience in transitioning junior explorers to producers.


Mr Boda is a geologist with more than 24 years of experience in project generation and development across several continents. He has occupied senior managerial roles with listed and un-listed mining and exploration companies across Australia, Cambodia, China, Indonesia, Philippines and Zambia exploring, delineating and assessing gold, copper and base metal projects, along with various other commodities including manganese, tin, graphite and rare earth elements.

With a strong background in structural geology and genesis of ore deposits, Mr Boda has been instrumental in the discovery of several mineral deposits through re-interpretation and re-assessment of projects.

Mr Boda is multilingual with a hands-on approach to exploration, project assessment, acquisition and mine development with a solid understanding of field protocols, mining software and database management.

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