This report updates, expands upon, and should be considered as a replacement for the testimony and submissions we provided the US International Trade Commission related to its hearing on December 7, 2023. It additionally serves as a modification and expansion of the modules for Iron, Steel, and Ferroalloys and for Alumina and Primary and Secondary Unwrought Aluminum in our 2022 report: The Greenhouse Gas Index for Products in 39 Industrial Sectors. We are currently developing and will publish the estimated range of GGIs for many products in the modules for 39 industrial sectors in our 2022 report because of the US ITC hearing and anticipating further government interest in this subject.