# What does it cost to sponsor the Battery Seminar The published 2025 sponsor prices range from $10,500 for Corporate Support to $42,500 for Signature Sponsor. Other listed options are $13,500, $15,000, $16,500, $18,000, and some space-free options at $11,000 or $14,000. These are 2025 figures, and the guide says 2027 pricing has not been published. Source: https://www.withexpa.ai/conf/2027/international-battery-seminar-exhibit Page: International Battery Seminar & Exhibit 2027完全ガイド：日本企業のための参加・出展判断 --- Each guide page at https://www.withexpa.ai/conf lists the questions it can answer as complete URLs. Open one exactly as printed; nothing needs to be constructed. `GET https://www.withexpa.ai/llm-query?p=&q=` returns plain text.