Investor Presentaiton

CALIFORNIA WATER SERVICE GROUP INVESTING FOR LIFE MEXICO FERVICE OUR STRATEGIC GOALS & IMPERATIVES Affordable, Excellent Service ■ Continuous improvement, efficiency & innovation • Technology as enabler ■ Centralized platform & process standardization • Active stakeholder engagement ■ Support for low-income customers ■ Efficiency in capital deployment ■ Progressive ratemaking & innovative funding Sustainability & Community Impact ■ Environmental stewardship ■ Water supply & infrastructure resilience Community leadership & support • Water conservation leadership • Energy efficiency ■ Corporate governance • Responsible sourcing & resource management OUR VALUES ONE TEAM. SAME DIRECTION. Integrity Service. OUR MISSION To be the leading Innovation provider of sustainable water & wastewater services. Public Health & Safety ■ Rigorous water quality sampling & monitoring • Use of best available water quality treatment technologies ■ Emergency preparedness & business continuity Enhanced Stockholder Value Commitment Agility. OUR PURPOSE To enhance the quality of life for our customers, communities, employees & stockholders. OUR PROMISE Quality. Service. Value." CALIFORNIA WATER SERVICE GROUP INVESTING FOR LIFE Safety • Corporate ■ Sustainable infrastructure investment ■ Responsible growth through acquisitions & partnerships Enterprise risk management & effective physical & cybersecurity ■ Progressive regulatory management ■ Effective investor relations ■ Strong credit rating Employees as Best Advocates ■ Diversity, equality & inclusion ■ Safe workplace ■ Talent attraction & retention ■ Succession planning & professional development ■ Active employee engagement INVESTOR RELATIONS 4

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