Crystal Learning has the privilege of working with some of the most well-known companies in the world. We take pride in exceeding their expectations and ensuring that all students that we train develop a valuable language skill they can use to meet their companies’ objectives.

We are only as good as the reputation of our students, so we work diligently and intelligently to ensure that the needs of our students always come first.

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Some of the brands we serve


Mark Perry Video Testimonial


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Group Class Video Testimonial

Customized one to one training of a very high quality standard in an ideal environment to study. Quality training at an affordable price!
Mike ByfieldRegional Business Development Manager Asia
Very good class and text book but not enough reading in class for the pronunciation. Very good and nice teacher!
Elodie ChandernagorContemporary and Modern Art Consultant
I take this course was to learn proper Mandarin pronunciation. Yi Mandarin employs only native speaker from China. My teacher, Ivy was very helpful and knowledgeable.
Marten BjorkmenSVP Asia Pacific
I enjoyed studying with my trainer very much. She is a great teacher, very active, high expectation and always smiling. I learned alot and at the same time had fun studying.
Johanna BergerGlobal Capital Markets

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It was a fund, full of laughter experience. Our teacher was very accommodating on all our questions. The learning are light and realty can use on our everyday experience.
Initially I thought Mandarin is very hard to understand. However, after learning and listening to the verb / adjective and noun, the words are keep repeating on other sentences phrase as well, It easy to understand, just need to practice listening and speaking more to understand better. Well done, thank you Teacher Mina.
Kelsum AdrianRobinsons
The textbook is very useful for daily conversation. Teacher teaches me not only the content of textbook but also related words and phrases, which is very practical.
Masashi EnyaDirector & CTO
The course contains a lot of material and vocabulary to see through the class so it is not possible to practice conversation and reading as much as I've would like to but having the audios in my phone was very helpful for me to practice at home. I came from knowing nothing to be able to understand the basic now! Thank you.
Lillana PerezCustomer team lead
It was a good experience learning Yi Mandarin class because its a big help for me in my job. Talking and learning Mandarin is very hard to learn but thru the patient of our teacher we learn a lot. Thank you teacher.
Avelardo Pius AlmonteRobinsons
I love my classes at Yi Mandarin and enjoy coming every week.
Rhian HartshornRisk Management
I will strongly suggest that people that want to learn spoken Chinese to join this class!
Buren GunaRegional Sales
It was a very helpful tool for us as a customer service representative because if bridges the gap. It was a knowledgeable lesson to apply for everyday life. It destroyed language barrier for both the customer and a staff. It gives a confident to talk or communicate with Mandarin speaking community. It's a life changing
Jocelyn A PiscasioRobinsons
It was awesome experienced, even though the day is short. I will try my best to use it to communicate Chinese customer.
Jayson A LacunaRobinsons
I had fun learning my Mandarin class. My teacher is cool and have a very good sense of patience despite all of us are everyday busy and no time study the lesson. She help us to understand like a real Chinese speaker.
Great experience, knowledgeable. Learned how to communicate with Chinese customer slowly.
Francis JopsephRobinsons
As a first class I found the style of teaching very easy to follow and it matches my learning style well
Richard FrancisGeneral Manager
Excellent class. Very enthusiastic teacher, developing easy to use verbal skills. Very good balance of new words/revision in textbook so that learning was a real pleasure.
Jeremy BourgGlobal Capital Markets
It was a great pleasure to study Mandarin as my trainer was very pleasant, lively and patient! I am looking forward to level 2.
Project ManagerAlexandrine Maud Sonet
Our instructor is very patience. She give example very clearly. Able to help us if we need to repeat again. We enjoy the full course, we never find the lesson boring. Very happy to learn that we can use it for everyday. I will highly recommend this course.
Anne AdopnadoRobinsons