DocZZZClairefontaine manufactures Rhodia's paper, along with Quo Vadis. However, the recipe is different. I personally find Rhodia to be a little smoother, and most of their offerings are off-white, while Clairefontaine's tend to be very white. This 'My Essential' offering from Clairefontaine however, is also off-white.
Both papers stand up extremely well to fountain pens, etc. Recommended.