I am not sure there are 3 levels of ADR we are moving up to level 2
I talked to E*Trade broker and a few TD Ameritrade brokers between 1/2-hour to an hour with each one.
The E*Trade guy was the least help. There is a .05 fee per share on some foreign fees end of year. Canada has less fees or no fees. Need to talk to a broker and expect to spend an hour. I could not get any of them to send me an email on those fees.
The TD guy went through each ASX stock I owned at that time.
However, we also talked about Novonix Ltd (QX) (NVNXF).
Which has 2 tickers in the US NVNXF and the other NVX. The fees for the NVNXF are $15 for me with TD and the NVX. ticker has a .05 fee per share end of year I believe for each trade.
I tried very hard for him to email those fees he would not.
So, I think we can be both. But I think ioneer could change the ticker in US with an (F) behind it. Closer to the ASX ticker.
RHHNF recently changed to IBATF a Canadian stock, the Canadian was IBAT.
All I can say is talk to your broker and if you can ask them to email those fees to you.
Hope I did not over explain. Been watching videos to find my own answers.