border disputes, the company negotiated with the Dutch from the 1880s onwards to define the boundary between the area granted by the Sultan of Sulu and the area claimed by the Dutch on the basis of the treaty with the Sultan of Bulungan. On 20 January 1891, they finally agreed on a line along 4°10' north latitude – which corresponded to a central division of the island of Sebatik. On 5 January 1905, the company territory of Lawas – a controversial border area of the province of Clark was relinquished to the neighbouring Sarawak and in exchange for “certain coal fields at the Brunei Bay”. List of presidents The head of the Company was the chairman of the board of directors, since 1910 officially named as President: See also Chartered companies Governor of North Borneo Proprietary colony Notes Footnotes References Further reading External links The papers of the British North Borneo Company are held by SOAS Special Collections British North Borneo 01 Chartered companies History of North Borneo History of Sabah British companies established in 1881 Companies disestablished in 1946 1881 establishments in North Borneo 1946 disestablishments in British Malaya 1881 establishments in the British Empire 1946 disestablishments in the British Empire