They don't, at least for the Canadian market, they sold off the fixtures division after '93 when GTE Sylvania was acquired by Osram. The lumes themselves were made up to the early 2000's though.
Actually I think Sylvania made streetlights well into the 90s. If I'm right OSRAM sold that streetlighting divison to Thomas & Betts in ... '98 or so, I think.
You are right about the Kaufel Group being bought in '98 though.
EDIT: If the link dosen't work try this one.