Taz is a dialect of Northeastern Mandarin spoken by the Taz people of the Russian Far East. There are a few loanwords from Tungusic languages, but no obvious Tungusic effect on the grammar.
Taz is largely mutually intelligible with Mandarin. In 1992, some Chinese bought Ginseng from the Taz. They spoke Standard Chinese and Taz, respectively, and could understand one other. What they did not understand were mainly names of places and social terms.
The Taz (Russian: Та́зы, romanized: Tázy; Chinese: 塔兹; pinyin: Tǎzī) are a mixed Sinitic and Tungusic ethnic group who primarily live in Primorsky Krai, Russia. The Taz people emerged from intermarriages between Han Chinese men and Tungusic women of the Udege, Nanai, and Oroch ethnic groups in Outer Manchuria. Today, the Taz primarily speak Russian, but their traditional language is the Taz dialect, a variety of Northeast Mandarin with loanwords from Udege and Nanai. The modern ethnonym "Taz" is a Russified version of the Chinese term tazi (meaning "indigenous, native").