It can stand for either Letter Of Intent or Letter Of Indemnity.
letter of interest
LoI typically stands for "Letter of Intent" in a business context, which is a document outlining the preliminary agreement between two parties. If you are referring to a chemical compound or element, please provide more context for a more accurate answer.
LOI is Letter of Intent
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Francesco Loi died in 1977.
Francesco Loi was born in 1891.
Le Loi died in 1433.
The population of Mae Loi is 7,015.
Le Loi was born on September 10, 1385.
Le Loi was born on September 10, 1385.
The population of Vinh Loi District is 187,515.
Loi Estrada was born on 1930-06-02.