There are also projects that have productively operated in the past but have ceased operations due to some economic reasons. They are currently studied and reviewed by various investor groups for possible development or re-activation. These projects include the following:

Toledo Copper Project

This is a project that involves the re-opening of the former Atlas Mine in Barangay Don Andres Soriano in Toledo City. The property is formerly held by Atlas Consolidated Mining Development Corporation and was recently acquired by Toledo Copper Mining Plc. It intends to invest US$ 100 Million for its revival. The mine is projected to generate US$ 130 Million annually from the sales of copper concentrates and will employ about 2,600 workers during its commercial operations. The project is presently confronted with issues on unpaid taxes from the Bureau of Internal Revenue, Bureau of Customs and local government of Toledo City. To re-open the mine, Government will be requiring the project proponents to submit an Environmental Protection and Enhancement Program (EPEP) and an updated Mining Project Feasibility Study.

Itogon Gold Project

A US$10 Million gold-silver project proposed by Itogon-Suyoc Mines, Inc. It involves the re-activation and expansion of its former Itogon and Suyok mines which ceased operations in 1996. The new project which require an investment of about US$ 10 Million is an expansion project to a 3,000 metric tons per day operation. It is projected to generate US$19 Million annually from the sales of gold-silver bullions. It is currently under the feasibility study stage.

San Antonio Copper Project

This is the copper mining and mineral processing project of the former Marcopper Mining Corporation in Santa Cruz, Marinduque before the infamous tailings spill which caused its closure in 1996. Large amount of copper ore reserves still exists in the San Antonio Pit which can support a 17-year mine operations using the existing mine and mill facilities. This US$ 100 Million copper concentrate project is projected to earn US$ 150 Million annually in foreign exchange.

Nonoc Nickel Processing Project

This project involves the revival of the former nickel refinery in Nonoc Island, Surigao del Norte. It requires an investment of a least US$ 1 Billion for the production of nickel and cobalt briquettes using the Sheritt-Gordon technology. Estimated annual revenue was placed at about US$ 300 Millions. Commercial operation is projected to start in 2010. The project proponents, Nonoc Processing Inc. and Philnico are looking for investment partners to pursue the project. A group of Chinese investors from Jinchuan Nonferrous Metal Corp, Shanghai Baosteel Group Corporation and China Nonferrous Engineering have indicated their interest in the project.

Batong Buhay Gold Project

This is a copper-gold-silver project located in Balatoc, Pasil, Kalinga which produced copper concentrates in 1984 and 1985. It was then operated by Batong Buhay Gold Mines, Inc. before its closure in November, 1985 due to the destruction of its transmission power lines by unidentified persons. Its assets which have a transfer price of close to P 5 Billion were then taken over by the former Asset Privatization Trust (APT), now the Privatization Management Office (PMO) of the Department of Finance. It has remaining copper reserves of 68 million metric tons with an average grade of 0.58% copper and a gold reserve of 108 million metric tons with an average grade of 0.47 to 0.64 grams gold per ton of ore. A Privatization Plan is being finalized for publication this September, 2004. Prospective investors will be invited to conduct due diligence studies on the property. The assets of the project have not been disposed so far due to legal impediments and existing cases filed by its former stockholders with the Securities and Exchange Commission and the lower courts.

Amacan Copper Projects

This is an open pit copper mining project in Maco, Compostela Valley formerly operated by North Davao Mining Corporation from 1981 to 1992. The assets of the mine during its closure in 1992 were transferred to the Assets Privatization Trust (APT), now the Privatization Management Office (PMO) at a price of P 4.7 Billion. Parts of these assets have been disposed so far by PMO. It has a remaining copper reserves of 65 million tons with a grade of 0.34% copper and gold reserves of 1.1 million metric tons with a grade of 5 grams gold per tons ore. Investor interest is not only confined to the existing mine but also focused on the geological potential of the adjacent areas of the Amacan orebody within the 20,237 hectares of application area for Financial or Technical Assistance Agreement (FTAA) filed in January 8, 1996