In order that those persons who produce or who plan to produce under purchase programs established pursuant to Public Law 774 (Eighty-first Congress) [sections
2061 to
2170,
2171, and
2172 of this Appendix] and Public Law 96 (Eighty-second Congress) may be in position to plan their investment and production with due regard to requirements, the responsible agencies controlling such purchase programs are directed to publish at the end of each calendar quarter the amounts of each of the ores and concentrates referred to in section
3 [section
2182 of this Appendix] purchased in that quarter and the total amounts of each which have been purchased under the program.