as to the following links, i cannot take any responsibiility for their content, so you have to follow them according to your own decision.

record labels
metaphysical circuits - underground tape label that has released ‘five mindsets‘
bsbta - the danish underground label where many of cs/chs-related works have been released.
tosom - german underground label which has released 'the radar society‘ and ‘tragic monochrome‘.
test tube - netlabel from portugal which has released ‘low battery‘.
retinascan - german label which released 'the singing machine' in 2003 and 'simrishamn' in 2004.
minor label - underground label based in leipzig and offering some chs/cs items in its distro section
ee tapes - 'a deadline for the living' was released on this belgian label.
drone records - experimental german label and mailorder occasionally carrying several cs/chs releases.
starfish records - german label which released the 'oceanic feeling' album.

sound archives
sonus - canadian archive of electroacoustic music which has information on 'being' & 'electronic works' plus downloads.
klaus kuhnke archiv - this is where one of the four copies of 'being' (original disc) resides, plus more cs/chs releases.
national sound archive - and this is where another of the four copies of 'being' (1996 release) as well as other cs/chs recordings have been archived.

further links
dr. dub vinyl recording service - lovers of vinyl can have cut tracks to 5", 7", 10" and 12" here - in small as well as larger editions.