5 New "Jim Rogers" Commodities ETNs: RGRC, RGRA, RGRE, RGRP and RGRI

This week, Royal Bank of Scotland (RBS) has added five new ETNs to its offering, giving exposure to commodity indexes created by Jim Rogers:

• RBS Rogers Enhanced Commodity ETN (RGRC)
• RBS Rogers Enhanced Agriculture ETN (RGRA)
• RBS Rogers Enhanced Energy ETN (RGRE)
• RBS Rogers Enhanced Precious Metals ETN (RGRP)
• RBS Rogers Enhanced Industrial Metals ETN (RGRI)

RGRA is the ETN equivalent to RJA ETF, RGRC is the equivalent of RJI ETF and RGRE is equivalent to RJN. ETN and ETF are structured differently, but I assume the 3 new products I've just mentionned should provide similar returns to the existing ETF, unless there are important ost differences between managing those 2 different types of financial products.

The real novelty is with RBS Rogers Enhanced Precious Metals ETN and RBS Rogers Enhanced Industrial Metals ETN, which as far as I know do not have equivalent ETF products.