Mwachongo was killed by unknown assailants in Voi, Makongeni area. The attackers later escaped with his motorcycle.
The DG emphasised the importance of peace in the region, suggesting the establishment of peacekeeping units with backing from both local and national authorities.
The county government pledged to collaborate with the two ministries of Land and Education to resolve the issue of land ownership title deeds affecting certain schools.
Governor Mwadime acknowledged China's significant role in Kenya's development and expressed optimism that this newfound collaboration will help his county progress.
During the meeting on Wednesday, the county leader Andrew Mwadime encouraged Tourism Cabinet Secretary Dr Alfred Mutua to work with the Ministry of Lands to assist residents near Tsavo National Park in settling land ownership issues that have been contentious for some time.
This comes after an intensified national government crackdown against illicit liquor across the country led by Deputy President Rigathi Gachagua and the Ministry of Interior and National Administration.
Governor Andrew Mwadime articulated his commitment to bolstering crop production, emphasising agriculture's pivotal role in combating the enduring famine plaguing the county.
The county government reaffirmed its dedication to providing accessible resources, including counselling services, legal assistance and shelters to survivors.
It was established that some farmers in Taita Taveta are vending raw macadamia at Sh30 per kilo.
Tourism and Wildlife CS Alfred Mutua revealed that President William Ruto will soon launch the compensation plan, previously halted in 2020, to provide swift compensation to human-wildlife conflict victims.
The United Nations launched World Wildlife Day on March 3 of each year to honour and promote awareness of all of the world's wild creatures and plants.
Last year, Taita Taveta County Governor Andrew Mwadime sent four senior county officials on compulsory leave over the alleged financial irregularities.