2018 Guide to Effective Proxies

6 TH EDITION | GUIDE TO EFFECTIVE PROXIES 408 CEO Pay Ratio In determining the CEO pay ratio for the Company, it is important to note that the Company has 29,023 total employees around the world, 23,429 of such employees reside in the People’s Republic of China with pay that is generally lower than the pay of our North American based employees. China v. Worldwide Employees China 81% All Others 19% As required by the Dodd-Frank Wall Street Reform and Consumer Protection Act, and Item 402(u) of Regulation S-K, we are providing the following information about the relationship of the total annual compensation of our median employee and the total annual compensation of our president and CEO for 2017: • The total annual compensation of the employee identified at median of our company (other than our CEO), was $9,909 using the definition of total annual compensation in accordance with Item 402(c)(2)(viii) under the Securities Act of 1933. • The total annual compensation of our CEO was calculated to be $2,615,703, using the same definition of total annual compensation described above, as disclosed in the Summary Compensation Table on page 43. • The ratio of the annual total compensation of our president and CEO to the total annual compensation of our median employee was estimated to be 264 to 1. We used the following methodology and the material assumptions, adjustments, and estimates to identify the median employee and determine our median employee’s total annual compensation: • We included all of our full-time, part-time, seasonal and temporary workers employed on October 1, 2017 (which is within the last three months of 2017) to determine our employee population. This allowed us sufficient time to identify the median employee given the global scope of our operations. • To identify the median employee, we used a consistently applied compensation measure consisting of base salary and other guaranteed pay through October 1, 2017, estimated annual overtime and allowances, and target annual incentives. We believe these pay components reasonably reflect the annual compensation of our employees. Based on these assumptions, we identified our median employee as a full-time employee located in Shanghai, China. The pay ratio is a reasonable estimate calculated in a manner consistent with SEC rules. The SEC rules for identifying the median employee, and calculating the pay ratio based on that employee’s annual total compensation, allow companies to adopt a variety of methodologies, to apply certain exclusions, and to make reasonable estimates and assumptions that reflect their compensation practices. As such, the pay ratio reported by other companies may not be comparable, as other companies may have different employment and compensation practices and may utilize different methodologies, exclusions, estimates and assumptions in calculating their own pay ratios. TTM TECHNOLOGIES, INC. 51 TTM TECHNOLOGIES, INC.