Summary

Treaty of friendship and commerce between Great Britain and Siam (1856)

All British subjects coming to Siam shall receive from the Siamese Government full protection and assistance to enable them to reside in Siam in all security, and trade with every facility, free from oppression or injury on the part of the Siamese; and all Siamese subjects going to an English country shall receive from the British Government the same complete protection and assistance that shall be granted to British subjects by the Government of Siam.
Source: Wikisource

Treaty of friendship and commerce between Great Britain and Siam (1856)

Should the British merchant and the Custom house officers disagree as to the value to be set upon imported articles, such disputes shall be referred to the Consul and proper Siamese officer, shall each have the power to call in an equal number of merchants as assessors, not exceeding two on either side, to assist them in coming to an equitable decision.
Opium may be imported free of duty, but can only be sold to the opium farmer or his agents.
Source: Wikisource

Treaty of friendship and commerce between Great Britain and Siam (1856)

The master of every English ship coming to Bangkok to trade, must, either before or after entering the river, as may be found convenient, report the arrival of his vessel at the custom-house at Paknam, together with the number of his crew and guns, and the port from whence he comes. Upon anchoring his vessel at Paknam, he will deliver into the custody of the custom-house officers all his guns and ammunitions, and a custom-house officer will then be appointed to the vessel, and will proceed in her to Bangkok.
Source: Wikisource

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