Exhibit 10.81

Facility Offer Letter

To: MFLEX Chengdu Co., Ltd:

According to the application from MFLEX Chengdu Co., Ltd (“Applicant”), our bank agrees to issue this Facility Offer Letter (“Letter”) for the purpose of comprehensive credit line. The details of the Letter are listed as follows:

1. The total amount of credit line granted by the Letter should not exceed USD11,000,000.00 (revolving use; short-term loan: US$ 9 million; trade financing business and letter of guarantee business: US$ 1 million; and undertaking capital business: US$ 1million).

Of such credit line, the loan interest rate of US dollar should not be lower than one-year Libor+550BPS; BPS should be negotiated and determined by both parties based on lending cost in domestic market of US dollar on actual loan day.

2. The purpose of such loan should comply with relevant laws and regulations, supervisory rules and policies.

3. Such loan will be approved to be granted after obtaining permission of verification procedures set by our bank and in compliance with loan conditions required by our bank.

4. The authoritative institution to approve such loan is Bank of China Sichuan Branch.

5. The Letter validates from the date of execution to October 17, 2012.

6. Laws of PRC shall apply to the Letter.

Bank of China

Chengdu Development West-Zone Sub-branch

President signature: /s/ Yang Zhaohui

March 23, 2012

The Price of Financing Service