Her Excellency Ambassador Nitivadee Manitkul received Mr. Olav Heian-Engdal, Lord Chamberlain of the Royal Palace and Mrs. Vibeke Rysst-Jensen, Chief of Protocol of the Royal Ministry of Foreign Affairs, who gave an honor to sign the book of condolences at the Royal Thai Embassy in Oslo.

On 27 October 2025, Her Excellency Ms. Nitivadee Manitkul, Ambassador of Thailand to Norway, led the diplomats and spouse as well as officials from the Royal Thai Embassy in Oslo to sign the book of condolences in remembrance of Her Majesty Queen Sirikit The Queen Mother who passed away on 24 October 2025.

On 15 October, 2025, H.E. Ms. Nitivadee Manitkul, Ambassador of the Kingdom of Thailand to the Kingdom of Norway accompanied by Group Captain Putthapong Phalajivin, Assistant Air Attache, and Acting Assistant Defence and Air Attache, Royal Thai Embassy in Oslo attended the presentation of Norway's Defence Budget for 2026 delivered by Ms. Marte Gerhardsen, State Secretary of Defence of Norway at Oslo Militaere Samfund Myntgata 3.

On 11 October, 2025, Her Excellency Nitivadee Manitkul, Ambassador Extraordinary and Plenipotentiary of the Kingdom of Thailand to the Kingdom of Norway attended the state ceremony of the first Opening of Storting (Parliament) of Norway after the general election on 8 September, 2025.

On 5 October, Ambassador Nitivadee Manitkul welcomed the senior executives who participated in the Admission Justice program headed by Mr. Paiboon Siengkong, President of Foundation for Research and Development of the Administrative Justice System at her residence during the latter's visit to Norway.