Ann: K-TIG Achieves Milestone with Hanwha Defense, page-12

https://www.aumanufacturing.com.au/...l-markets-looks-to-disrupt-australian-welding

I keep following this and note the increased revenues , however I can not see the relevance for manufacturing stainless steel containers (for radioactive waste) as their main claim to fame is butt welding and I can not see the relevance of butt welding a 3 M cubed container when it would seem to me plasma welding is more appropriate lower CAPEX cost , below is an example .
And really why Butt weld instead of corner weld given stainless steel plate is large enough that there is no need to join sheets together except for where the sides meet for a box shaped container or are the containers cylindrically shaped ?