As of today, CDPR has obtained the following licenses and approvals for its Quiulacocha tailings project:
- the social license granted by the
Quiulacocha Rural Community (Comunidad Campesina de Quiulacocha, "CCQ") inOctober 2019 ; - an environmental impact declaration (Declaración de Impacto Ambiental, "DIA") for the Quiulacocha tailings exploration project by the
Peruvian Ministry of Energy and Mines (the "MINEM") approved inAugust 2021 ; and - the technical approval from the
National Water Authority ("ANA") obtained inJuly 2021 .
Following several recent meetings with government officials, CDPR is pleased to announce that:
- official documents to start its sonic drilling campaign have been submitted on
May 23 rd 2022.
The Quiulacocha tailings deposit (4,300 masl) covers approximately 115 hectares with tailings deposited in the Quiulacocha Tailings Storage Facility (TSF) from the early 1920´s to 1992. The tailings stored in the TSF, comprised of processing residues, come from the Cerro de Pasco open pit and underground mine. The main period of tailings deposition at Quiulacocha came after 1943 when the Paragsha plant was put into commission, first treating Cu ore and later processing Zn-Pb-Ag ore. According to historical records, the Cerro de Pasco mine processed approximately 58.3 Mt of Zn-Pb-Ag ore between 1952 to 1992 from the open pit and underground workings with average historical grades of 8.6% Zn, 3.3% Pb and 98 g/t Ag.
The most recent Historical Mineral Resource Estimate for the Quiulacocha tailings by
This Historical Resource Estimate is detailed and discussed in the technical report titled The Excelsior Mineral Pile (EMP) and Quiulacocha Tailings (QT) associated with the
Sonic drilling employs high-frequency, resonant energy generated inside a sonic head to advance a core barrel and casing into subsurface formations. It is an optimal method when near 100% core recovery of soft, unconsolidated material is desired, employing the highest technology, with zero contamination, no water use, no earth movement resulting in zero environmental and social impact.
The exploration program is planned in the third quarter of 2022 using sonic exploration equipment and will focus on the central, deeper section of the tailings deposit. Exploration is planned on a 100 x 100-meter grid with depth to be limited by the base of the deposit (lake sediments and organic material).
The sampling and assaying program from the exploration will include a Quality Assurance/Quality Control (QA/QC) program which incorporates the insertion of blanks, standards, twin samples, duplicate pulps and coarse rejects and a selection of sample pulps to be sent to a secondary laboratory. After completing the sampling and assaying program and mineralogical studies, composites will be generated to undertake metallurgical studies.
Mr.
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