Hansa Tankers' chemical tanker pool is working to add eight scrubber-fitted vessels to its fleet.

Norway's Bjarne Rieber group has decided to install scrubbers on its seven modern chemical tankers employed in the compatriot operator's pool.

Director Oystein Elgan said the Bergen-based company's shipowning arm Inventor Chemical Tankers will spend between $15m and $20m, according to Norwegian daily Finansavisen.

The ships were built in Japan between 2015 and 2017.