The Siduan people speak a language called Situ Melanau. They are probably among the original inhabitants of Sarawak. By the 19th century, they were settled in scattered communities along the Rajang River in Sarawak. Not surprisingly, they were fishermen and boat builders.

The Siduan people live in Malaysia's state of Sarawak, in northern Borneo.

Those who speak a Malanau dialect like the Siduan people are switching to Malay, the main language of Malaysia.

A slight majority of the Siduan people are Muslim, though all of them cling to traditional animistic beliefs. In these beliefs, people attribute power to local spirits rather than to Allah.

There are virtually no Christian materials in the language of the Siduan people, which means that only those who speak Malay can hear of Christ's redeeming power.

Pray that Siduan leaders will have dreams of Jesus where the Savior reveals Himself to them.
Pray for the Siduan people to have a spiritual openness to Jesus during this time of great change.
Pray for them to preserve their language and culture in their own churches.
Pray for a disciple making movement to emerge among the Siduan people.

Scripture Prayers for the Siduan in Malaysia.

http://www.peoplegroups.org/Explore/groupdetails.aspx?peid=9341
https://en.wikipedia.org/wiki/Melanau_people
http://worldbibles.org/language_detail/eng/sdx/Sibu+Melanau