im not really sure what defines "tech trance" but maybe you would enjoy this release by Rekorder:
http://www.discogs.com/release/934195
or this one by Markus Lange (not that new though):
http://www.discogs.com/release/764987
i guess the moonbeam remix of "minilogue - seconds" is techish too:
http://www.discogs.com/release/875992