I agree with Phil that it must be a very long time since Maersk sent a vessel for scrap, like Evergreen they build most of their fleet requirements and then on-sell at 15-20 years, often with a time-charter back for anything fm 1-5 years. This would then enable lines to avoid dealing with the delicate scrapping side-issues, although the matter of asbestos has only really arisen in more recent times, long after first sale and lease-back deals were instituted.
Hard to tell by looking at them but PONL's Taranaki and Nina were built in 1980 as roll-on/roll-off sisters as Kazimierz Pulaski and Wladyslaw Sikorski. In 1993 the latter was converted to a containership and they've never looked the same since. The "Nina" was PONL's most renamed vessel, sailing under the names PONL Piraeus, Khaleej, Malacca before Nina. A charter on Australian coastal service for the "Taranaki" was recently hoped to keep her working a little longer but eventually fellover.
The Chinese shipyard at Jiangyin has certainly scrapped many well remembered PONL vessels since 2000, including the ex-Blue Star "Sydney Star" quartet, the "Resolution Bay" group, PONL Luanda ex Columbia Star / NZ Caribbean etc., and Marin ex New Zealand Mariner / Ulanga etc.