Update 18 September 2020 today’s ruling  EWHC 2471 (TCC) concerns a procedural issue only about one narrow issue on the facts – connected with the strike out part of the application rather than the Article 34 part.
Update 21 April 2020. Being instructed by claimants in the case, I cannot comment much on one of the first formal Orders in the case (now known as Municipio de Mariana and ors v BHP Group),  EWHC 928 (TCC). Eyre J’s Order identifies the threefold jurisdictional challenge: 1. Forum non conveniens for non-EU defendants; 2. Article 34 Brussels IA for the EU-based defendants; 3. Abuse of process, case management for both. Eyre J granted defendants’ application for extension of time, albeit not to an autumn slot as requested but rather 21 July (moved from 8 June).
Justice Eyre refers to already existing Covid19 protocol precedent, on the need and reasons for postponing hearings. He has more sympathy for delay by teleworking than expressed by Alexander DJ in Heineken Supply Chain v Anheuser-Busch Inbev  EWHC 892 (Pat) (who referred to the greater discomfort of other professions than the legal one), listing more au fait reasons for postponing at 32. An extension of 6 weeks was ordered.
The media have been reporting on a considerable class action lawsuit, underway in the English courts, in the Corporate Social Responsibility /mass torts category.
The class action case was filed against Anglo-Australian company BHP Billiton on behalf of 240,000 individuals, 24 municipal governments, 11,000 businesses, a Catholic archdiocese and about 200 members of the Krenak indigenous community. It concerns victims of the Samarco dam collapse in Mariana three years ago.
I am reporting the case simply to ensure complete overview of the CSR /jurisdiction /applicable law issues reported on the blog. For as I am co-counsel acting for the claimants, I am not in a position to comment on the case until and if legal analysis will be in the public domain.
(Handbook of) European Private International Law, 2nd ed. 2016, Chapter 8, Heading 8.3.