now you meet the criteria:
1. authored publications: 20 pulications(many chinese). 6 first-author confrence presentation in recent two years. only 20 citations so far.
2. media report: one Janese newspaper report.
try to specify it's a national or international journal. better to dig out more reports, if possible.
3. one membership
one is fine, if it's selected. But better to get another good one, eg. Sigma Xi, or other
4. one top award from American Society. (total less than 20 recipients per year)
definitely good. but you also have to specify why and how this award to establish you at national or international top level
No dbout that your case is enough for Eb1a. but you have to make it stronger as I suggested. Actually, only one evidence to support one criterion is not very enough to get approval. So, you have to dig out more to support each criterion.
For example, to meet your publication criterion, you can specify: more publication; high level journals, first author, more citation, highly reviewed by others, other specialist comments,.....
then, immigrant officers will think you are indeed at the top level. If you only say that you have 20 papers, it won't be persuasive.
Actually, my paper is less than you, and I have no award like you. I did premium processing and got approval.
SO, you definitely can do EB1a. But, even for NIW, you have to prepare your all evidence and materials CAREFULLY.
Good luck.