A Press Advisory from the US Embassy said Tillerson would hold talks with President Muhammadu Buhari on Tuesday, March 13.
Since taking office past year, three of US top officials - President Trump, Vice President Pence and Secretary Tillerson - have visited all regions- except Africa.
He said the visit would be part of his "condolence and sympathy visits to areas where we have had unfortunate events". Trump later denied making the comment.
Tillerson says Chad has taken important, positive steps to strengthen control over its passports and improve information-sharing.
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Tarapur MIDC was the most important, as there are around 1,100 chemical units which store hazardous and flammable chemicals here. However, scared and shaken by the explosion, many feared it was an quake and hundreds rushed out on to the streets and sat there.
A report on Chad's progress was being prepared in Washington and would be reviewed by President Trump next month, Tillerson said."We have to wait for the final report", he added.
On his part, Mr Tillerson reaffirmed the support of the USA for Nigeria to ensure the speedy recovery of the abducted girls.
The U.S Secretary of State said Nigeria was a very important country to America, stressing: "You have our support in your challenges".
Tillerson is expected to hold a press conference with Geoffrey Onyeama, minister of foreign affairs, after meeting with Buhari.
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Hospital officials say more than 500 patients were affected, including some that provided samples in the 1980's. The tanks have multiple monitors and sensors that should set off alarms if there's a temperature flux.
Tillerson was due to return to Washington later in the day after cutting his Africa trip short amid speculation it was to prepare for the unprecedented meeting.
He flew into Nigeria from the Chadian capital of N'Djamena on Monday and would only stay for several hours before heading for home in the early evening. There was no immediate response from Abuja.
Chad is an important USA ally in the fight against Islamist groups in West Africa and the report will be reviewed by President Donald Trump next month.
Tillerson, while in East Africa, cancelled scheduled events on Saturday on the grounds of ill-health.
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Sweetcorn, cranberry juice and peanut butter are all on the list along with cigarettes, cigars and playing cards. He was apparently referring to the European Union threats of retaliation.
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