The GAMCO Natural Resources, Gold & Income Trust (GNT) operates as a closed-end equity fund, established by GAMCO Investors, Inc. and managed by Gabelli Funds, LLC. This fund primarily seeks investment opportunities in publicly traded companies across global markets. Its core focus lies in businesses engaged within the natural resources and gold sectors. To generate income, the Trust employs a strategy of selling covered call options on the equity securities it holds. When constructing its portfolio, the fund takes into account a range of valuation criteria, including recent pricing of comparable publicly listed securities, dependable valuations for privately held companies, the application of various financial models, insights from current analyst reports, and an assessment of the issuer's income or cash flow. Should these methods not apply, the acquisition cost becomes the determining factor. The fund's investments span companies of all sizes, from small to large market capitalizations. Its investment performance is benchmarked against several indices: the CBOE S&P 500 Buy/Write Index, the Philadelphia Gold & Silver Index, the Dow Jones U.S. Basic Materials Index, and the S&P Global Agribusiness Equity Index. Formed on January 27, 2011, and based in the United States, the fund was previously identified as Gabelli Natural Resources, Gold & Income Trust.