The phrase "adding that the members" is correct and usable in written English.
It can be used when you want to include additional information or clarification about the members in a statement or discussion.
Example: "The committee reached a consensus, adding that the members would be responsible for implementing the new policy."
Alternatives: "noting that the members" or "stating that the members".
"I wouldn't say all the pieces of the jigsaw are in place," Osborne said, adding that the members of the eurozone had to supplement monetary union with closer fiscal ties.
"It's all wonderful people who share the same addiction, the same fascination, with the wonderful world of mushrooms," Ms. Snecinski said, adding that the members rely on each other not just for fun and friendship, but for education: eating the wrong mushroom can be deadly.
"TKE will not tolerate any actions such as these that would be defined as racist, discriminatory and/or offensive," the organization said, adding that the members in the video were not on chapter premises when the incident happened and were not taking part in a fraternity function.
"Mr. Russi expressed his concern that Guy Velella was going to commit suicide if not released and stressed that Mr. Velella was not a threat to the public," the report said, and added that the members decided to release him because he was "a broken man" and that "they were worried he might commit suicide".
I should add that the members of the troupe are -- what else? -- Betas.
As a final word, I might add that the members of the Orthopaedic Staff at the Hospital for Special Surgery have come to depend upon the bone bank to such an extent that autogenous grafts are rarely used, and yet the number of operations in which grafts are employed has increased.
"I am happy," he said, adding that the quartet members weren't expecting the prize.
"That's absolute bullshit," he said, adding that the gang members he knew did not venture into the fray.
It was a routine patrol, he said, adding that the crew members had no reason to reproach themselves before the Chinese.
"This may come as welcome news!" she wrote, adding that the departing members "will be missed".
The following week, Bischoff concluded with adding that the winning members at Survivor Series would all get a week to be in charge of Raw.
