I found the following verse in KulArnava Tantram's 17th chapter. It is talking about AshtAnga Arghya - the eight ingredients of an Arghya (in general).
SiddhArtham akshtainjava kushAgram tila meva cha |
phalam pushpam ashtAnga arghyam prakirtitah ||
White mustard seeds, (a kind of) puffed rice, tips of Kusa/Darva
grass, sesame seeds (Til), barley (Java), sandal paste/powder (Chandan), fruits (Phala) and
flowers (Pushpa) -- these 8 things are known as the ingredients of an Arghya.
KulArnava Tantram 17.96
Note that it is generally talking about the 8 ingredients of an Arghya. So, it should apply to Surya Arghya too.
Another reference, this time specifically about Surya Arghya, is found in the following Gupta DikshA Tantram verses as quoted in Shaktananda Tarangini's 2nd chapter:
Apah kshiram kushAgrAni ghritam dadhi tathA madhu |
karavirAni tathA raktancha chandanam |
AshtAnga esho koharghyo vai
bhAnave parikirtitah ||
Water, milk, Kusa-tips, Ghee, curd, honey, red Karavi flower and red
sandal - These are known as the 8 ingredients of Arghya of BhAnu (or
So, while the previous list is generally applicable the 2nd list is specifically for Surya.