The monastery in honor of the Assumption of the Blessed Virgin Mary, a male monastery of the Thai diocese of the Russian Orthodox Church, is located in the rural district of Angthong in the Mueang Ratburi district of Ratburi province in Thailand. It is the only Orthodox monastery in the country.

Its creation was prompted by the lack of an Orthodox cemetery in Thailand and the widespread practice of cremation in the country, which contradicts Orthodox traditions. Since it was impossible to organize a cemetery near Bangkok, it was decided to purchase a plot of land 100 km from the capital.

On February 17, 2009, Deacon Daniil Vanna, chairman of the Orthodox Church Fund Committee in Thailand, visited Ratburi province and, on behalf of the church, concluded a deal to purchase a plot of 8200 m². It was planned to establish the Holy Assumption parish, a spiritual school, and an Orthodox cemetery on this land.

On August 15, 2009, Priest Daniil Vanna met with 11 village elders in Ratburi province, where 98% of the population practices Buddhism. In connection with the plans to build an Orthodox church, local authorities wished to learn more about the Orthodox faith to avoid possible interreligious conflicts.

In November 2009, construction of the church began on the purchased plot, and a site for the first Orthodox cemetery in Thailand was consecrated nearby.

Due to a lack of parishioners, it was decided to create a male monastery instead of a parish. In July 2010, Patriarch Kirill supported the proposal of Archimandrite Oleg (Cherepanin) to establish the Holy Assumption Monastery. By that time, the construction of the church and the complex of buildings was nearing completion. Archimandrite Oleg was tasked with starting the organization of the monastic community and presenting candidates for the community to the Secretariat of the Moscow Patriarchate.

In September 2010, the monastery was visited by parishioners of the Holy Nicholas Church in Bangkok and students of catechist courses, who brought furniture and church utensils donated by benefactors.

In November 2010, Archimandrite Oleg and Priest Danai Vanna approved the project for the Holy Gates, cemetery fence, and chapel in honor of the Iveron Icon of the Mother of God. The project for landscaping the territory and constructing a utility building was also agreed upon.

In December 2010, Deacon Georgy Maximov transferred church utensils and vestments to the monastery, donated by the Orthodox Missionary Society from Moscow.

On January 27, 2011, Archimandrite Oleg consecrated four domes with crosses intended for the Holy Gates and the Iveron Mother of God chapel.

On February 12, 2011, a minor consecration of the monastery and its civil opening took place, led by a representative of the King of Thailand, Lieutenant General Akachai Chintosa.