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Agata Nickel Project Pilot Plant Commissioned, Operation Commenced

June 05, 2013

CALGARY, June 5, 2013 /CNW/ - TVI Pacific Inc. (TSX: TVI) (OTCQX: TVIPF) ("TVI" or the "Company") announced today, that as a result of positive bench-scale test work carried out at the Agata Nickel Processing Project, it has commissioned and commenced operation of pilot-plant testing which will further define the technological parameters to be used in producing a Bankable Feasibility Study with the goal of building a commercial processing plant.

The positive test work on nickel (Ni) laterite ore, from the Agata nickel laterite deposit, confirms the Agata ore is highly amenable to acid leaching with a high rate of nickel extraction achieved at a low acid consumption rate.  The process technology TVI is developing, and which has produced these results, aims to achieve maximum nickel recovery and low acid consumption which translates into increased metal production and lower operating costs.


  • Extractions of 94% nickel achieved
  • Agata ore highly amenable to acid leaching
  • Low acid consumption rate of 650 kg/t ore
  • More than 70 leach tests concluded to date
  • TVI pilot plant testing expected to be completed during Q3 2013

"We are extremely pleased with the results achieved," said Mr. Cliff James , Chairman and CEO of TVI Pacific Inc. "The process being developed could position the proposed Agata nickel processing plant amongst the lower cost producers."

The Agata Processing Project - a joint venture with Mindoro Resources Ltd., is located in Agusan del Norte province, within the Surigao mining region on the island of Mindanao, Philippines. The Surigao region is a major nickel producing region providing ore to processing plants in Australia, China, Korea and Japan.

Bench-Scale Test Work Yields Positive Results

Approximately one tonne of ore was sent to the Beijing General Research Institute of Mining & Metallurgy (BGRIMM) for the purposes of conducting bench-scale crushing, scrubbing, screening and leaching tests to confirm the optimal circuit configuration and validate the processing process identified by TVI.

A team of three TVI metallurgists were seconded to the BGRIMM team for the duration of the test work campaign.  TVI also setup a bench-scale laboratory in Manila.  All optimum conditions as identified in the BGRIMM tests have been validated, with excellent reproducibility of results between the TVI and BGRIMM tests.

To date, more than 70 leach tests have been conducted. These tests conclusively illustrate that the Agata ore is highly amenable to acid leaching. Overall extractions of 94% Ni has been obtained at a relatively low acid consumption rate of 650 kg/t ore. This translates to approximately 49 t acid/t Ni produced for ore grades of 1.5% Ni. The acid utilisation efficiency is encouraging when compared to other atmospheric acid leach processes.

BGRIMM Pilot Plant Established (China)

Approximately twelve tonnes of ore were sent to BGRIMM in order to continuously operate a pilot plant that consists of, amongst others, primary leaching (atmospheric) and secondary leaching (low pressure autoclave). To date, all ore has been blended, crushed, screened and milled. Leaching commenced on May 13, 2013 to test a high grade (1.5% Ni) and a medium grade (1.3% Ni) ore.

TVI Pilot Plant (Philippines)

Pregnant leach solution (PLS) from the BGRIMM pilot plant will be shipped to the Philippines and processed in the TVI downstream Ni recovery pilot plant. This plant will be commissioned in June 2013 in order to be operational by July 2013. The TVI pilot plant work is expected to be completed during Q3 2013.

Process Description

The process technology TVI is developing aims to achieve maximum nickel (Ni) recovery at an operating cost that could position the Agata process plant amongst the lower cost producers - while best representing the requirement to contain capital costs of the project.

The process involves the treatment of higher Ni grade ore (>1.3% Ni). Much of the high iron (Fe) grade limonite will be directly shipped as part of a direct shipment of ore operation (DSO). Therefore, the ore feed to the process plant is depleted of limonite. In addition, the higher grade Ni is associated mainly with the saprolite ore (which occurs beneath the limonite in the ore profile) - therefore, once the higher grade ore is considered, the ratio of limonite:saprolite that will be fed to the process plant is approximately 8% limonite:92% saprolite.

The process consists of separating the ore into a high Fe, low magnesium (Mg) fraction to feed the primary leaching stage and a low Fe, high Mg fraction, to feed the secondary leaching stage. Leaching is conducted in 2 stages to minimize acid consumption, as well as clean the pregnant leach solution (PLS) of Fe.

PLS is recovered by a counter current decantation (CCD) circuit and then further refined using ion exchange (IX), and finally precipitated and filtered to produce a nickel hydroxide product (NHP) of 53% Ni content. This NHP is a versatile product since it is a refined intermediate product, and therefore, due to its purity, it is easily refined into Ni metal by potential off-takers.

Key Process Information

  • Ore type: Ni grade >1.3%; 8% limonite, 92% saprolite
  • Ore feed rate: 550,000 dtpa
  • Leach Ni extraction: 94%
  • Leach H2SO4 consumption: 650 kg/t ore
  • Overall Ni recovery: 92%
  • Ni product: NHP; 53% Ni; 7,000 - 7,500 t contained Ni pa.

Test Work Ore Selection 

Approximately thirty tonnes of ore were mined from a variety of test pits that cover the Agata ore body. Test pits were carefully selected from the available drill hole data to accurately reflect the ore that is expected to feed the process plant. Limonite and saprolite ore was separately mined, blended and loaded into sealed drums to preserve ore moisture.

TVI and Mindoro Joint Venture

TVI and Mindoro Resources (TSXv:MIO) have signed four joint venture agreements, previously announced on October 1, 2012, relating to the Agata and Pan de Azucar mining projects located in the Philippines on the islands of Mindanao and Panay, respectively.  The joint ventures present TVI with multiple growth opportunities for near-term and medium-term cash flow generating potential. Under the agreements the Company's Philippine affiliate, TVI Resource Developments (Phils.) Inc. ("TVIRD") has the ability to earn up to a 60% interest and will act as operator of the projects.

Mining Project Opportunities within the Agata Tenement

  • a near-term high iron (Fe) laterite direct shipping ore (DSO) operation
  • a near-term limestone DSO operation
  • a medium-term lime production facility
  • a medium-term nickel processing plant project

Prior extensive pre-feasibility and engineering works have been conducted on the Mindoro properties. These reports can be accessed on Mindoro's website at www.mindoro.com or on SEDAR at www.sedar.com.

TVI Pacific Inc. has filed an updated National Instrument 43-101 technical report on the Agata project on April 10, 2013. The National Instrument 43-101 technical report is available on SEDAR and on TVI's website.

Qualified Person

Yulo Perez , Chief Operations Officer of TVI Resource Development (Phils.), Inc. (TVIRD), Fellow AusIMM, is the qualified person under NI 43-101 who has approved the scientific and technical information in this news release.

About TVI Pacific Inc.

TVI Pacific Inc. is a publicly-traded Canadian company that is focused on the production, development, exploration and acquisition of resource projects in the Philippines and Southeast Asia. TVI produces copper and zinc concentrates from its Canatuan mine.  TVI is a partner/operator in several joint venture projects in the Philippines and Papua New Guinea and also has an interest in an offshore Philippine oil property.

The Toronto Stock Exchange has neither approved nor disapproved of the information contained herein.

Forward-Looking Statements: This news release contains certain forward-looking information (referred to herein as "forward-looking statements"). Forward-looking statements are often, but not always, identified by the use of words such as "anticipate", "plan", "intend", "estimate", "scheduled", "expect", "may", "will", "should", or similar words suggesting future activities or outcomes. The forward-looking statements set out in this news release include information relating to interests that may be earned by TVIRD in the Agata and Pan de Azucar joint ventures; opportunities for exploration, development and commercialization of the Agata Mining Project (including the High Fe and Limestone DSO/Lime Production Facility and the Agata Nickel Processing Plant).

Forward-looking statements are subject to certain risks and uncertainties that could cause actual events or outcomes to differ materially from those anticipated or implied by such forward-looking statements.  Those risks and uncertainties include, but are not limited to:  (A) results of further work in pursuing the conceptual planning described in this news release not supporting current expectations as to the opportunities outlined; (B) TVIRD not funding the necessary expenditures at Agata or Pan de Azucar to advance the projects or earn an interest under the joint venture agreements due to, among other things (i) changes in TVIRD's strategic priorities, due diligence findings, changes in laws or regulations affecting mining operations in the Philippines (including the profitability of such operations), and other factors, (ii) changes in TVIRD budgets and (iii) limited availability of funds; (C) a determination on the part of TVIRD not to pursue projects contemplated by one or more of the joint venture agreements noted above for technical, economic, legal or other reasons (including, without limitation, a failure to obtain required permits or other governmental or regulatory approvals);  and (D) certain other risks identified elsewhere in TVI's public filings, including, without limitation, those risk factors set forth at pp. 46-52 of TVI's Annual Information Form dated  March 19, 2013.  Accordingly, readers should not place undue reliance upon the forward-looking statements contained in this news release and such forward-looking statements should not be interpreted or regarded as guarantees of future outcomes.

The forward-looking statements contained in this news release are made as of the date hereof and TVI does not undertake any obligation to update publicly or to revise any of the included forward-looking statements, except as required by applicable Canadian securities law. The forward-looking statements contained herein are expressly qualified by this cautionary statement.

Steven Feldman
Vice President, Investor & Corporate Relations
TVI Pacific Inc.

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