Ann: Investor Presentation on Graphene, page-21

Biggles, the forum where presentation was made is not detailed and I am only guessing here that it was part of several presentations made at that forum, involving Monash Uni.
Initially SER issued the presentation to ASX on July 8 as a non priority update - without any supporting text. SER are required to update ASX with any presentation as per ASX listing rules.
The video is a bonus really as it explains more about the relationship with Monash Uni and the research - it was issued after the market closed and again with a non priority.

The important takeaway from the presentation, is that there is video to support the previous announcement on July 8 detailing where we are at with Monash Uni.
Also SER are allowed to have there're name and Logo on the same page as Monash Uni and the Australian Government - to me that is very powerful.

It is not a presentation to potential investors - SER have not tried to do that and IMO if anyone thought they were trying to may need to think again.

A polished presentation to potential investors is what you would expect @ the D&D in August.
Last time I looked SER were not even having a booth

Anyway, since you brought a while back then hopefully you have made a lot of money.
The shares you sold should IMO make some one else a lot of money as well