Malaysia has rejected calls to free Doan Thi Huong.
She's accused of murdering Kim Jong Un's half-brother, who was poisoned in Malaysia in 2017.
Vietnam had asked for the release of Huong - who's a Vietnamese citizen - after a second woman charged with his murder was released on Monday (March 11).
Siti Aisyah returned to her homeland in Indonesia after prosecutors surprised the court by dropping the charge against her.
They gave no reason for her release.
But on Thursday (March 14), prosecutors said Huong will continue her trial on April 1st.
If convicted, she could face the death penalty.
Her defense lawyer says it's a case of discrimination: (SOUNDBITE) (English) VIETNAMESE SUSPECT DOAN THI HUONG'S LAWYER, HISYAM TEH POH TEIK, SAYING: "Her case is the same as that of Siti Aisyah, there are no differences, similarities all along, we ran same defense […] If Siti Aisyah can be released, why not Doan?" Both women were accused of killing Kim Jong Nam in 2017 by smearing his face with a banned chemical weapon.
Kim Jong Nam had been living in exile.
After fleeing his homeland when Kim Jong Un took over in 2011.
Defense lawyers have argued the women were used as pawns - as part of an assassination orchestrated by North Korean agents.
Pyongyang has rejected those claims.