In 1885 the British annexed Upper Burma and established their rule in the region.

[2] As a consequence a force of 1,800 British soldiers under General Sir George Wolseley occupied the town of Wuntho.

In 1892 the state was formally annexed by the British and incorporated into the District of Katha.

[1] The rulers of Wuntho bore the title Saopha Saophas: He led the Wuntho troop to fighting with the British in 1891 but surrendered, after that he escaped to Koshanpye in Santa 13 years and Mong La 19 year until Sir Sao Maung of Yawnghwe State persuaded him to come back to his motherland.

After that he lived in Taunggyi and received a salary of 100 kyat per month and when Sao Yawt Hkam Serk was the president of Myanmar he received the salary 500 kyat per month