The chair is always selected from the majority party and the ranking member is the most senior member of the minority party. The majority party ensures it has a majority on every committee.
Members are listed in order of their rank on the committee. Committee membership information is from the unitedstates project on github.
There are 2 bills referred to this subcommittee:
S. 3571: Good Samaritan Remediation of Abandoned Hardrock Mines Act of 2022
Sponsor: Sen. Martin Heinrich [D-NM]
S. 4244: Alan Reinstein Ban Asbestos Now Act of 2022
Sponsor: Sen. Jeff Merkley [D-OR]