According to @tradeparadex, Paradex has activated zero SOL trading fees for retail (UI) traders starting September 3 at 12:00 AM UTC; source: https://twitter.com/tradeparadex/status/1963039506183160026. This policy applies specifically to SOL trading via Paradex's user interface for retail accounts as stated in the announcement; source: https://twitter.com/tradeparadex/status/1963039506183160026. The announcement did not specify an end date, additional eligibility criteria, or product scope beyond SOL and retail (UI) traders; source: https://twitter.com/tradeparadex/status/1963039506183160026. For traders, the change removes Paradex's trading fee component on eligible SOL orders placed through the UI from the stated start time; source: https://twitter.com/tradeparadex/status/1963039506183160026.