In late December 2017, it came to our attention that ACTA GEOLOGICA SINICA articles like http://www.geojournals.cn/dzxben/ch/reader/create_pdf.aspx?file_no=2017endzxb06028&flag=1&journal_id=dzxben&year_id=2017 … are #openaccess, but Wiley will charge you $38 for the same one http://onlinelibrary.wiley.com/wol1/doi/10.1111/1755-6724.13468/abstract
We also found #OA versions of
Indeed, it looks like entire #OA issues of Acta Geologica Sinica are being sold by Wiley.
We brought this to the attention of Wiley, have received an acknowledgement, but as of the time of writing, have heard nothing further.
We have now received an informal response directly from Wiley. In part:- "We are investigating with the Geological Society of China (the owners of the journal) why these articles can be viewed/accessed freely on the site you’ve linked to".
Their inquiries are ongoing.